LifeWiki - User contributions [en]

User:77topaz/Forum handles table

2023-05-31T07:38:50Z

Scorbie:

To make referencing patterns and other discoveries easier, I've decided to start compiling a table noting which forum handle corresponds to which real name used on this wiki. Feel free to add to this table if you want.

{| class="wikitable sortable"
!Preferred name for credits
!Forum handle
!Discord handle
!Discord nickname
!LifeWiki username
!Catagolue handle
|-
|[[Adam P. Goucher]]
|calcyman
|apgoucher
|apgoucher
|[[User:Calcyman|Calcyman]]
|apgoucher@gmx.com
|-
|[[Dylan Chen]]
|Dylan Chen
|inspirehep
|inspirehep
|[[User:Dylan Chen|Dylan Chen]]
|inspirehep@gmail.com{{refn|group=note|also Cloud_Bach}}
|-
|[[Jiahao Yu]]
|yujh
|yujhtheyujh
|#4 se fan: ihateswitchengines<ref name="changes_often" group="note" />
|[[User:Yujh|Yujh]]
|Yujh{{refn|group=note|also Yujh2}}
|-
|
|Cyclotrons
|Cyclotrons
|Cyclotrons
|[[User:Cyclotrons|Cyclotrons]]
|Cyclotrons
|-
|
|dani
|danielle{{refn|group=note|formerly moose}}
|danielle<ref name="changes_often" group="note">changes often</ref>
|[[User:Dani|Dani]]
|dani
|-
|[[Dave Greene]]
|dvgrn
|dvgrn
|dvgrn
|[[User:Dvgrn|Dvgrn]]
|-
|[[David Raucci]]
|hotdogPi
|hotdogPi
|hotdogPi
|[[User:HotdogPi|HotdogPi]]
|-
|[[Dongook Lee]]
|Scorbie
|
|Scorbie
|[[User:Scorbie|Scorbie]]
|-
|[[Evin]]
|EvinZL
|Wait, What?
|#NaN switch engine fan<ref name="changes_often" group="note" />
|[[User:Evin|Evin]]
|-
|
|Ian07
|Ian07
|Ian07
|[[User:Ian07|Ian07]]
|Ian07
|-
|[[Ignacy Jackl]]
|IgnacyJ
|IgnacyJ
|IgnacyJ
|[[User:IgnacyJ|IgnacyJ]]
|IgnacyJ
|-
|[[Ivan Fomichev]]
|codeholic
|codeholic
|codeholic
|[[User:Codeholic|Codeholic]]
|-
|[[Jacob]]
|moonsheep
|
|
|[[User:Moonsheep|Moonsheep]]
|-
|[[Jeremy Tan]]
|Freywa
|Parcly Taxel
|Parcly Taxel
|[[User:Freywa|Freywa]]
|-
|[[John Winston Garth]]
|winston
|winston
|Christristiax
|
|winstax
|-
|[[Kalan Warusa]]
|ihatecorderships
|Ball Lightning
|Ihatecorderships
|[[User:Ihatecorderships|Ihatecorderships]]
|-
|[[Matthias Merzenich]]
|Sokwe
|Sokwe
|Matthias Merzenich
|[[User:Sokwe|Sokwe]]
|-
|[[Mitchell Riley]]
|mvr
|mvr
|mvr
|-
|
|Moosey
|Moooosey
|ought to do CA again<ref name="changes_often" group="note" />
|[[User:Moosey|Moosey]]
|Moosey
|-
|[[Connor Steppie]]
|muzik
|lordmuzik848
|Партин Моляков
|[[User:AwesoMan3000|AwesoMan3000]]
|muzikbike
|-
|
|wwei47{{refn|group=note|formerly wwei23}}
|xp3_xggk171z8e82
|Self-labeled synthesis "expert"<ref name="changes_often" group="note" />
|[[User:Prime Raptor21|Prime Raptor21]]{{refn|group=note|formerly Wwei23}}
|ilovecoding23@gmail.com
|-
|[[Alex Greason]]
|AGreason
|Exa
|Exa
|-
|
|bubblegum
|sonata «pathétique»
|sonata
|[[User:Bubblegum|Bubblegum]]
|-
|
|cvojan
|cq
|$$$
|[[User:Cvojan|Cvojan]]
|-
|
|goldenratio
|phiisnotcoolanymore<ref name="changes_often" group="note" />
|goldenratio<ref name="changes_often" group="note" />
|[[User:Goldenratio|Goldenratio]]
|onepoint618
|-
|
|iNoMed
|iNoMed
|iNoMed
|[[User:INoMed|INoMed]]
|-
|[[James Pascua]]
|JP21
|Jam11
|
|[[User:JP21|JP21]]
|-
|[[Mark Niemiec]]
|mniemiec
|StrongAxe
|Mark D. Niemiec
|-
|[[Daniel Vargas]]
|MathAndCode
|Danny2197
|MathAndCode
|[[User:MathAndCode|MathAndCode]]
|-
|[[Nico Brown]]
|glider_rider
|turingcomplete30
|Nico (glider_rider)
|-
|[[Nikola K.]]
|andrewph33
|andrewthediscorder
|andrewthediscorder
|-
|[[Oscar Cunningham]]
|Macbi
|Macbi
|Macbi
|Macbi
|Macbi
|-
|[[Pavel Grankovskiy]]
|Pavgran
|Pavgran
|Pavgran
|-
|
|Saka
|Droseraman
|Saka
|[[User:Saka|Saka]]
|-
|[[Tanner Jacobi]]
|Kazyan
|Kazyan
|Kazyan
|-
|
|praosylen<ref name="4A4A" group="note">formerly A for awesome</ref>
|praosylen
|<ref name="changes_often" group="note" />
|[[User:Praosylen|Praosylen]]<ref name="4A4A" group="note" />
|0x6ef79077fbb
|-
|
|83bismuth38
|Dui Mauris Football
|gbrldvs<ref name="changes_often" group="note" />
|-
|
|AforAmpere
|AforAmpere
|Ampere
|-
|[[Andrew J. Wade]]
|mscibing
|mscibing
|-
|[[Arie Paap]]
|wildmyron
|wildmyron
|-
|
|Blinkerspawn
|AxiomaticSystem
|Blinkerspawn
|-
|[[Brett Berger]]
|biggiemac
|biggiemac42
|-
|
|M. I. Wright
|caramel<ref name="wright" group="note">formerly Wright</ref>
|caramel<ref name="wright" group="note" />
|-
|
|cgoler2
|cgoler2
|just red
|[[User:Cgoler2|Cgoler2]]
|-
|
|gameoflifemaniac
|Illuminati65
|Illuminati65
|-
|[[John Goodman]]
|John Goodman
|
|
|
|John Goodman
|-
|
|KittyTac
|KittyTac
|FOOF + ClF3
|-
|[[Luke Kiernan]]
|yoleo
|ljkiernan1
|ljkiernan1
|-
|[[Mateusz Naściszewski]]
|
|Mateon1
|Mateon1
|-
|
|Redstoneboi
|Redstoneboi
|RS BOB
|-
|[[Rob Liston]]
|rliston
|
|
|
|rliston@gmail.com
|-
|
|Sarp
|Sarperen
|Sarp
|-
|
|_zM
|_zM
|bird<ref name="changes_often" group="note" />
|-
|[[Alexey Nigin]]
|Alexey_Nigin
|-
|[[Andrzej Okrasinski]]
|ohennel
|-
|[[Avery Feingold]]
|NimbleRogue
|-
|[[Chris Cain]]
|chris_c
|-
|[[Chris Rowett]]
|rowett
|rowett
|rowett
|[[User:Rowett|Rowett]]
|-
|[[Darren Li]]
|testitemqlstudop
|Dandan
|very
|[[User:Testitemqlstudop|Testitemqlstudop]]
|TechnobladeNeverDies
|-
|[[David Bell]]
|dbell
|-
|[[David S. Miller]]
|dsmiller
|-
|[[Dean Hickerson]]
|Dean Hickerson
|-
|[[Ed Pegg Jr]]
|EdPeggJr
|-
|[[Emerson J. Perkins]]
|knightlife
|-
|[[Frank Everdij]]
|dexter1
|-
|[[Hartmut Holzwart]]
|HartmutHolzwart
|-
|[[Heinrich Koenig]]
|hkoenig
|-
|[[Jason Summers]]
|Jason Summers
|-
|[[Josh Ball]]
|velcrorex
|-
|[[Karel Suhajda]]
|Kasuha
|-
|[[Keith Amling]]
|amling
|-
|[[Kiran Linsuain]]
|Kiran
|-
|[[Lewis Patterson]]
|Lewis
|-
|[[Louis-François Handfield]]
|Jormungant
|-
|[[Luka Okanishi]]
|AbhpzTa
|-
|[[Martin Grant]]
|Extrementhusiast
|-
|[[Matti Ward]]
|mattiward
|-
|[[Michael Simkin]]
|simsim314
|-
|[[Mike Playle]]
|MikeP
|-
|[[Nick Gotts]]
|NickGotts
|-
|[[Park Shinhwan]]
|Dannyu NDos/David
|-
|[[Paul Callahan]]
|pcallahan
|-
|[[Paul Chapman]]
|igblan
|-
|[[Paul Tooke]]
|Paul Tooke
|-
|[[Rich Holmes]]
|Rich Holmes
|-
|[[Richard Schank]]
|flipper77
|-
|[[Sergey Petrov]]
|Guam
|-
|[[Shannon Omick]]
|skomick
|-
|[[Scot Ellison]]
|scote
|-
|[[Simon Ekström]]
|simeks
|-
|[[Stephen Silver]]
|SAS
|-
|[[Szymon Bartosiewicz]]
|lifeisawesome
|-
|[[Tim Coe]]
|moebius
|-
|[[Tim Hutton]]
|Tim Hutton
|-
|[[Tomas Rokicki]]
|rokicki
|-
|[[Wojciech Kęsy]]
|Game of Life Fun
|-
|[[Yoel Matveyev]]
|Yoel
|-
|[[Christopher D'Agostino]]
|C28
|
|
|[[User:C28|C28]]
|-
|Phil Bookman
|Book
|Book
|Book
|
|
|
|}
==Notes==
<references group="note" />

User talk:77topaz/Forum handles table

2023-05-31T07:38:11Z

Scorbie:

==Proposal: replacing "real name" with "preferred name for credits"==
I propose that the "real name" column be replaced with something like "preferred name for credits". Since this community is entirely online, I don't think "real names" are very important. When I'm building and updating pattern collections I often find myself wondering how users want to be credited. ~[[User:Sokwe|Sokwe]] 05:03, 10 August 2021 (UTC)
: I'd second this proposal if others agree, that's actually really insightful. --[[User:A for awesome|A for awesome]] ([[User talk:A for awesome|talk]]) 18:36, 12 August 2021 (UTC)

: I made the change to the column header, but I didn't change any values in the table. ~[[User:Sokwe|Sokwe]] 15:19, 10 December 2021 (UTC)

== Request ==

Okay, so I'd rather have my real name not to be searchable when searching with the keyword "N9b" but unfortunately it is currently. Could you redact my real name or the forum handle "N9b" so that my real name isn't googlable?

Edit: I'm fine with my real name or Scorbie in the pattern files.

Edit: Oh I guess I'll edit this page and see if search engine drops this page.

User talk:77topaz/Forum handles table

2023-05-31T07:34:20Z

Scorbie: /* Request */

User talk:77topaz/Forum handles table

2023-05-31T07:32:37Z

Scorbie: /* Request */ new section

User:77topaz/Forum handles table

2021-07-28T01:44:11Z

Scorbie:

Pre-pulsar shuttle

2021-07-25T23:45:18Z

Scorbie:

{{Glossary}}
A '''[[pre-pulsar]] shuttle''' is a [[shuttle]] that hassles a predecessor of the [[pulsar]]. Small pre-pulsar shuttles are currently known for [[period]]s 22, 25, 26, 28, 29, 30, 32, 36, 40, 42, 47, 58, 60, 64, 65, 88, and 90.
Shuttles for these periods are shown below, along with the number of generations and displacement for each reaction.

{| style="margin:auto"
|-
| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle22
|caption = p22, left: (11,3), right: (11,3) ({{LinkCatagolue|xp22_696o8b9cxc9b8o696z065x31x13x56zy18c8x8c8z06agwccxccwga6z69611d93x39d11696|style=brief}}) Found by [[Mike Playle]] and [[Matthias Merzenich]] in May {{year|2013}}<ref name="post7961" /> 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle25
|caption = p25, left: (11,3), right: (14,3) ([[p25 pre-pulsar shuttle]]) 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle26
|caption = p26, edge: (14,3), centre: (12,3) ([[p26 pre-pulsar shuttle]]) 
|position = center
}}
|-
| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = p28prepulsarshuttle
|caption = p28, left: (14,3), right: (14,3) ([[p28 pre-pulsar shuttle]]) 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle29
|caption = p29, left: (15,3), right: (14,3) ([[p29 pre-pulsar shuttle]]) 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle30
|caption = p30, left: (15,3), right: (15,3) ([[Eureka]]) 
|position = center
}}
|-
| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle32
|caption = p32, left: (16,5), right: (16,5) ({{LinkCatagolue|xp32_gggxosq596y1695qsoxgggz333sssydsss333zy48i111i0i111i8zgggeeeydeeegggz333x6em84oy1o48me6x333zy511y311|style=brief}}) Found by [[Noam Elkies]] on January 26, {{year|1995}} 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 8 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle36
|caption = p36, left: (20,5), right: (16,5) ({{LinkCatagolue|xp36_y6c93gg08o0o8zy53ih303rq487oa6zy4ggmlgog9hlmgbq453zy412260m88c0fo3s246z6ic88gy339lcdc9a9lmz0dllg87027y0dlooo82520fgcaikm88cz3ihy6o8o10110d8wb8n4cq2hjkcz0haary4hhhy9haahzo9hy6323g0gg0m2wq2t46b8hp56z0mll12s08sy0ml33328k80u16a95d226zc96221y3oil6m6iaildzy4g88c0d2260u3o784czy411dl131ihld1qb4kozy5o9ho0orb42s3aczy66io11023032|style=brief}}) Found by [[Karel Suhajda]] on June 22, {{year|2013}},<ref name="post8327" /> partial from {{year|2008}}<ref name="post8301" /> 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle40
|caption = p40, left: (20,5), right: (20,5) ({{LinkCatagolue|xp40_s22i8gy439e0e93y4g8i22szw129887yf788921zy1ggy2sksxsksy2ggz0oq1851y48o0o8y41581qozya3210123|style=brief}}) Found by [[Dean Hickerson]] on November 4, {{year|1994}} 
|position = center
}}
|-
| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle42
|caption = p42, edge: (20,5), centre: (22,5) ({{LinkCatagolue|xp42_y2o4k6k9b88gy0g88b9k6k4ozx259am2230311y21130322ma952zo4q4871y2g8w33w8gy21784q4oz012lkmy33ky2k3y3mkl21zcidi8hy378y287y3h8idiczw10gbaky533y5kabg01zx122dhlhn8baa4y04aab8nhlhd221zy51023y63201|style=brief}}) Two stabilizations found by [[Noam Elkies]] in {{year|1997}} and {{year|1998}} respectively<ref name="jslife">{{CiteSummersPattern|name=jslife|accessdate=July 25, 2021}}</ref> 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle47
|caption = p47, edge: (25,5), centre: (22,5) ([[p47 pre-pulsar shuttle]]) 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle58
|caption = p58, left: (29,6), right: (29,6) ([[p58 pre-pulsar shuttle]]) 
|position = center
}}
|-
| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle60
|caption = p60, left: (30,6), right: (30,6) ({{LinkCatagolue|xp60_xqh2y52hqz33173y737133zy227zy24ezcc8usy7su8cczx584y5485|style=brief}}) Found by [[Noam Elkies]] on May 30, {{year|1998}}<ref name="jslife" />
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 10 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle64
|caption = p64, left: (29,6), right: (35,6) ({{LinkCatagolue|xp64_ybj9ary9ra9jzy8gwdl4exe8x8exe4ldwgzy811ddy2s51015sy2dd11zccy5gyngy5cczy077xqhbxssydssxbhqx77zy51y566y566y51zy166yx66|style=brief|format=extended}}) Found by [[Aidan F. Pierce]] and [[Matthias Merzenich]] on June 20, {{year|2015}}<ref name="post20550" /> 
|position = center
}}
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 8 HEIGHT 600 WIDTH 600 ]]
|rle = x = 74, y = 43, rule = B3/S23
29b2obo8bob2o$29bob2o8b2obo$35bo2bo$30b6o2b6o$29bobo10bobo$29b2o3b6o3b
2o$27b2o2b3obo2bob3o2b2o$26bo2b3o10b3o2bo$26b3o16b3o$17b2o10bob2o8b2ob
o10b2o$10b2o6bo9bo2bob2o4b2obo2bo9bo6b2o$10bo2bob3o10b2o2b2o6b2o2b2o
10b3obo2bo$12b2obo17bo6bo17bob2o$8b4o3bo42bo3b4o$7bo4b2ob2ob2o34b2ob2o
b2o4bo$8b3obob3ob3o32b3ob3obob3o$3bob3o4bobobo3bo32bo3bobobo4b3obo$3b
2o4bo3bo4b3o11b3o4b3o11b3o4bo3bo4b2o$b2o3bob2o2b2obo3b2o11bobo4bobo11b
2o3bob2o2b2obo3b2o$o2b3obob2ob2o4b3o11b3o4b3o11b3o4b2ob2obob3o2bo$b2o
3bo6b3o2bo36bo2b3o6bo3b2o$3bob3o5b3o2bo36bo2b3o5b3obo$3bo2bo6b3o2bo36b
o2b3o6bo2bo$4b2obob2ob2o4b3o11b3o4b3o11b3o4b2ob2obob2o$6bob2o2b2obo3b
2o11bobo4bobo11b2o3bob2o2b2obo$2b3o4bo3bo4b3o11b3o4b3o11b3o4bo3bo4b3o$
2bo2b3o4bobobo3bo32bo3bobobo4b3o2bo$5bo2b3obob3ob3o32b3ob3obob3o2bo$7b
o4b2ob2ob2o34b2ob2ob2o4bo$8b4o3bo42bo3b4o$12b2obo17bo6bo17bob2o$10bo2b
ob3o10b2o2b2o6b2o2b2o10b3obo2bo$10b2o6bo9bo2bob2o4b2obo2bo9bo6b2o$17b
2o10bob2o8b2obo10b2o$26b3o16b3o$26bo2b3o10b3o2bo$27b2o2b3obo2bob3o2b2o
$29b2o3b6o3b2o$29bobo10bobo$30b6o2b6o$35bo2bo$29bob2o8b2obo$29b2obo8bo
b2o!
|caption = p65, edge: (14,3), centre: (51,3) ({{LinkCatagolue|xp65_yc4s0g8o6p6o8zy9o4p78mlscslm87o4ozy639c3c1f423303324f1c3c93zy5c871w4l1gu1h1ug1l4w178czyb3373y13733zggwggcieg8oyfo8geicggwggz560v2ceb89acy2ggxggy2ca98bec2v065zw9p0f9y6fvmxmvfy69f0p9zqm0fkj7t1p5jyfj5p1t7jkf0mqzy2347011yf110743zybcsesg0g0gsesczy531e8w2a807888708a2w8e13zy6c93s3of2kss0ssk2fo3s39czy9129eh6q3j3q6he121zyc23w1169611|format=extended|style=brief}}) Found and optimized by various people in July {{year|2021}}<ref name="post134029" /><ref name="post134041" /> 
|position = center
}}
|-
|| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 8 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle88
|caption = p88, left: (44,9), right: (44,9) ({{LinkCatagolue|xp88_yc4s0s2ib8oy9o8bi2s0s4zg0g88mkkm4is0sidhk3s2dl4cy9c4ld2s3khdis0si4mkkm88g0gzh98ngj08ci1278g22u889hy18c8x8c8y1h988u22g8721ic80jgn89hz01162269521ok460v0qkgjyfjgkq0v064ko1259622611zyd56wml46y964lmw65zyhpiary9raip|style=brief}}) Found by [[Matthias Merzenich]] in June {{year|2015}},<ref name="post20476" /> reduced in December {{year|2019}}<ref name="post86087" /> 
|position = center
}}
| {{EmbedViewer
|viewerconfig = #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 10 HEIGHT 600 WIDTH 600 ]]
|pname = prepulsarshuttle90
|caption = p90, left: (45,9), right: (45,9) ({{LinkCatagolue|xp90_xguxjpuwupjxugz618882y01w1y0288816zy5ee4zy5ss8zo0444gy8g4440oz0102uxi6vwv6ixu201zy411y011|style=brief}}) Found by [[Dongook Lee]] on May 2, {{year|2015}}<ref name="post19255" /> 
|position = center
}}
|}

==See also==
*[[Newshuttle]]

==References==
<references>
<ref name="post7961">{{LinkForumThread
|format = ref
|title = Re: What do you want out of (conway's) life this year?
|p = 7961
|author = Matthias Merzenich
|date = May 10, 2013
}}</ref>
<ref name="post8327">{{LinkForumThread
|format = ref
|title = Re: Incomplete search patterns - try to complete
|p = 8327
|author = Karel Suhajda
|date = June 22, 2013
}}</ref>
<ref name="post8301">{{LinkForumThread
|format = ref
|title = Re: Incomplete search patterns - try to complete
|p = 8301
|author = Dave Greene
|date = June 18, 2013
}}</ref>
<ref name="post20550">{{LinkForumThread
|format = ref
|title = Re: Thread For Your Accidental Discoveries
|p = 20550
|author = Matthias Merzenich
|date = June 20, 2015
}}</ref>
<ref name="post134029">{{LinkForumThread
|format = ref
|title = Re: Oscillator Discussion Thread
|p = 134029
|author = Matthias Merzenich
|date = July 24, 2021
}}</ref>
<ref name="post134041">{{LinkForumThread
|format = ref
|title = Re: Oscillator Discussion Thread
|p = 134041
|author = Matthias Merzenich
|date = July 25, 2021
}}</ref>
<ref name="post20476">{{LinkForumThread
|format = ref
|title = Re: List of updates since 28. August 2013 for GoL status page
|p = 20476
|author = Matthias Merzenich
|date = June 17, 2015
}}</ref>
<ref name="post86087">{{LinkForumThread
|format = ref
|title = Re: Oscillator Discussion Thread
|p = 86087
|author = Matthias Merzenich
|date = December 8, 2019
}}</ref>
<ref name="post19255">{{LinkForumThread
|format = ref
|title = Re: Thread for your unsure discoveries
|p = 19255
|author = Dongook Lee
|date = May 2, 2015
}}</ref>
</references>

User:Scorbie

2021-07-17T02:33:48Z

Scorbie: /* Todo */

== Self-Intro ==

Hello, this is Scorbie. I go by the same name in the forums and Conwaylife Lounge in Discord as well.

I hang out in Conway's Game of Life most of the time, especially with stationary objects; e.g. oscillators, drifters, and stable catalysts. 
I think composing the parts into a bigger interesting pattern like Lego blocks made me interested in those objects.

I have plans for several projects in pattern searching and automated pattern mining, but sadly I don't have the efficiency to do that currently. Life is hard.

== Todo ==

* Expand [[pipsquirter 2]]
** Add Reduced form that pretty much obsoletes most of them
** Fix wrong attribution at the bottom left (that one is actually a newer reduced form by Karel Suhajda)
** Change screenshots to GIFs in [[pipsquirter 2#Gallery|Gallery]]

* Expand [[lightweight emulator]], [[middleweight emulator]], and [[heavyweight emulator]]
** Add one-sided and two-sided high-clearance variants

* Delete erroneous statements in [[spark#Strength_of_sparkers|Strength of sparkers]]
** Add disclaimer in [[:Category:Strong sparkers]]

* Elaborate LW/MW/HW sparkers (not emulators!) ([[User_talk:Entity_Valkyrie_1#P4_heavyweight_volcano|Rationale for the name sparkers rather than emulators]])

User:Scorbie

2021-07-17T02:32:20Z

Scorbie: /* Todo */

== Self-Intro ==

Hello, this is Scorbie. I go by the same name in the forums and Conwaylife Lounge in Discord as well.

I hang out in Conway's Game of Life most of the time, especially with stationary objects; e.g. oscillators, drifters, and stable catalysts. 
I think composing the parts into a bigger interesting pattern like Lego blocks made me interested in those objects.

I have plans for several projects in pattern searching and automated pattern mining, but sadly I don't have the efficiency to do that currently. Life is hard.

== Todo ==

* Expand [[pipsquirter 2]]
** Add Reduced form that pretty much obsoletes most of them
** Fix wrong attribution at the bottom left (that one is actually a newer reduced form by Karel Suhajda)
** Change screenshots to GIFs in [[pipsquirter 2#Gallery|Gallery]]

* Expand [[lightweight emulator]], [[middleweight emulator]], and [[heavyweight emulator]]
** Add one-sided and two-sided high-clearance variants

* Delete erroneous statements in [[spark#Strength_of_sparkers|Strength of sparkers]]
** Add disclaimer in [[:Category:Strong sparkers]]

* Elaborate LW/MW/HW sparkers (not emulators!) [[User_talk:Entity_Valkyrie_1#P4_heavyweight_volcano|Rationale for the name sparkers rather than emulators]]

LifeWiki:Tiki bar

2021-07-17T02:26:17Z

Scorbie:

[[File:Taka Tiki Break 250.jpg|right|thumb|250px|Taka Tiki Break]]
<div style="clear: both; float: right; margin-left: 1em; margin-bottom: 1em; margin-top: 1em">__TOC__</div>
'''Welcome, one and all, to the Tiki bar!''' This page is used to discuss the technical issues, policies, and operations of the LifeWiki. Or just sit down, relax, and enjoy a cocktail.

<div style="font-size:1.4em;text-align:center" class="plainlinks">[{{fullurl:LifeWiki:Tiki bar|action=edit&section=new}} Click here to start a new Tiki bar discussion.]</div>

==Welcome to the Tiki bar==
Wikipedia has the [https://en.wikipedia.org/wiki/Wikipedia:Village_pump Village pump], Wiktionary has the [https://en.wiktionary.org/wiki/Wiktionary:Beer_parlour Beer parlour], but the LifeWiki's lacked a central page for discussion so far other than [[User talk:Nathaniel]]. So I took the liberty to create the Tiki bar to facilitate discussion in a friendly and relaxed atmosphere. Welcome! [[User:Apple Bottom|Apple Bottom]] ([[User talk:Apple Bottom|talk]]) 11:09, 13 June 2016 (UTC)

==Archived discussions==
:''Note: active discussions are never archived while still active.''

* See [[LifeWiki:Tiki bar/Archive/2016]] for Tiki bar discussions started in 2016.
* See [[LifeWiki:Tiki bar/Archive/2017]] for Tiki bar discussions started in 2017.
* See [[LifeWiki:Tiki bar/Archive/2018]] for Tiki bar discussions started in 2018.
* See [[LifeWiki:Tiki bar/Archive/2019]] for Tiki bar discussions started in 2019.
* See [[LifeWiki:Tiki bar/Archive/2020]] for Tiki bar discussions started in 2020.

== Embedded-viewer variant collections ==

I just tried some experiments with using embedded viewers floating to left, right and center, in the [[Fx77]] article.

It looks like it's always going to be a little tricky to get this kind of viewer stamp collection to flow correctly on the page, cooperating with the infobox -- at least, unless someone can put together some very very clever templates. It seems to be far beyond my web layout skills.

I found that the old trick of adding <pre><div style="clear:both;"> ... </div></pre> '''almost''' worked well for flow control -- for example, to force the centered Fx77+R64 to drop below the two Hersrch Fx77 variants, Fx77S and Fx77SW. This looks okay on a small laptop screen, but produces ridiculous amounts of whitespace on a larger monitor, so I removed it. The clear:both trick is particularly unwieldy when a pattern has a very lengthy infobox, because all the following text drops below the entire infobox -- not just below the most recent embedded viewers.

Also, it seems as if I often get stuck having just one left-aligned, one right-aligned, and one center-aligned embedded-viewer thumbnail. I'm thinking that there are a number of medium-sized stamp collections that it would be good to get into LifeWiki articles, e.g., maybe representatives of the sixteen classes of glider timing adjustment circuits. I've never gotten a midsized collection like that to look any good on multiple monitors, but maybe if they all just float left with THUMBNAIL THUMBSIZE 3 in LifeViewer, that will be about the best we can do?

I did find that captions could be improved by centering with <pre><div style="text-align:center;">first-line caption extended-caption </div></pre>Does that look tolerable to everyone else? Unless this is added, EmbedViewers with '''position=center''' will have centered caption text, but '''position=left''' and '''position=right''' EmbedViewer captions will both have left-justified text, which doesn't look so good. The automatically-added last two lines still end up left-justified in those two cases, unfortunately; I didn't attempt to fix that for the Fx77 article.

In general, if anyone has better suggestions for dealing with page flow issues like these, please let me know! [[User:Dvgrn|Dvgrn]] ([[User talk:Dvgrn|talk]]) 15:51, 1 July 2020 (UTC)

==Link to Discord server on navbar?==
So today ApChrKey joined and said something about how the invite link was really hard to find. It is on [[LifeWiki:Life_links|links]] but at the very bottom. (I don't know how that affects it but whatever) Macbi suggested that we could put it up top on the navbar or whatever it's called. Given that we already have a way to cite it I don't see why we can't have a direct way to access it. [[User:Bubblegum|Bubblegum]] ([[User talk:Bubblegum|talk]]) 22:56, 10 July 2020 (UTC)

I know my opinion on the Discord server is considered worthless by many, and I don't even partipicate much here. But I'd personally prefer the Discord server to not appear on the obvious places due to several reasons:

1. The reputation of the Discord server is currently disputed (or was it just my point of view?) and it have a very low signal-to-noise ratio. This might - I said *might* - leave a bad impression on people who visit this site.

(Well, that's under the assumption that we want few high-quality new users rather than lots of low-quality new users. I spent like 1/12 of my life working toward the former situation, but I understand objections.)

2. More people will probably make the signal-to-noise ratio worse especially considering most new users quit after finding LWSSes or settle on easy rules low-quality contributions.

My personal opinions above. I try to be more neutral so that my opinions be more valuable than "Seriously? This community is already a mess - let's not make it any messier.". [[User:Ultimium|Ultimium]] ([[User talk:Ultimium|talk]]) 05:25, 20 May 2021 (UTC)

== Time to delete Template:LinkWeisstein? ==

At this point, I think it's unlikely that the site is going to be updated so that this template can be re-enabled. As it stands, all this template does is produce an ugly piece of whitespace in articles such as [[toad]]. Any objections to deleting it? (note that I can semi-automatically remove all the occurrences beforehand with AutoWikiBrowser) [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 16:40, 18 October 2020 (UTC)
: I don't see anyone posting any objections. Certainly I don't object. I've been writing to Eric Weisstein every few years, asking for him to get those out-of-date pages either updated or removed, but have never gotten a response back. Or not about that, anyway -- there was one short email exchange just after I attended a Wolfram CA summer session, once upon a time. [[User:Dvgrn|Dvgrn]] ([[User talk:Dvgrn|talk]]) 23:53, 2 December 2020 (UTC)
:: I wasn't anticipating any objections either, but I just wanted to be safe. Since it's now evident that someone else has tried and failed to resolve the issue, I've gone ahead and deleted the template along with its transclusions. Thanks to AWB, this was a mercifully quick process: only 13 minutes to go through ~250 articles. [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 01:52, 3 December 2020 (UTC)

A minor issue concerning the deleted template: as said on [[Special:WantedPages]], other external link templates still have a link to the LinkWeisstein template, presumably due to [[Template:ListOfLinkTemplates]]. I don't see where to fix that. [[User:GUYTU6J|GUYTU6J]] ([[User talk:GUYTU6J|talk]]) 06:55, 7 December 2020 (UTC)

== Excessive barberpole articles ==

In light of the recent [https://conwaylife.com/w/index.php?limit=500&title=Special%3AContributions&contribs=user&target=Bubblegum&namespace=&tagfilter=&start=2020-10-12&end=2020-10-12 merging] of [[Template:Vessel]] articles, we should probably consider merging some of the larger [[barberpole]]s as well, as most people seem to agree that going up to [[quindecapole]] is pretty excessive. However, this raises the question of what the new cutoff point should be. I'd say we should keep at least everything up to [[heptapole]], since all of those have shown up naturally. Note that although [[duodecapole]] does not have any sample soups in any symmetry, [[tredecapole]] does, making that the largest semi-natural barberpole. [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 14:11, 20 October 2020 (UTC)

: Agreed. I think it would be nice to link [[barberpole]] from the individual barberpole pages. Also, just in case even the natural ones gets too many, a "Further Plan B" could be merging the "natural-but-no-content-otherwise-barberpoles" inside [[barberpole]] or something similar. (Edit: a table would be nice and clean) [[User:Scorbie|Scorbie]] ([[User talk:Scorbie|talk]]) 01:48, 8 December 2020 (UTC)

== Automatic categorization of pages under Rule namespace ==

The first topic that starts in 2021, this is actually a continuation of [[LifeWiki:Tiki_bar/Archive/2020#2-state_rule_cleanup]]. Can we set up some mechanism that scans through ruletables on LifeWiki and creates categories for rules with different n_states, neighborhood and symmetry? Hopefully this should not affect the content of ruletables. [[User:GUYTU6J|GUYTU6J]] ([[User talk:GUYTU6J|talk]]) 15:44, 21 April 2021 (UTC)

== Merge some excessive categories? ==

I think there's way too many categories for "Patterns with X cells" and "Patterns with Catagolue frequency class X" (see [https://www.conwaylife.com/wiki/Category:Patterns_with_(number)_cells this] and [https://www.conwaylife.com/wiki/Special:PrefixIndex?prefix=Patterns+with+Catagolue+frequency+class&namespace=14 this]), (100+ cells or 10+ frequency class is when they start to get unneccesary) and they usually don't help the reader at all since there's usually only one page in them. Could we try merging some them to categories like "Patterns with between 200 and 300 cells", which would both be less excessive and more useful to readers? [[User:Goldenratio|Goldenratio]] ([[User talk:Goldenratio|talk]]) 14:09, 10 May 2021 (UTC)
* Population: 98, 99, 100-109, 110-119, ..., 190-199, 200-299, 300-399, ..., 900-999, 1000-9999, 10000-99999, (each power of 10)
* Heat: Use same category numbers as population.
* Period, mod: Keep exact.
* Constructible by gliders: 48, 49, 50-59, 60-69, ..., 90-99, 100-199, 200-299, ..., 1000+
* Rotors: Delete all heat/mod/period/population/volatility. Period can be recreated once a non-2 is created.
* Unit cells: Delete period/population/size.
* Eaters: Delete by number of cells.
* Sawtooth: Truncate population to nearest hundred below 1000, then keep 1000+ category. (Also, shouldn't 1163 have an expansion factor of 2?)
* Frequency class: Round to integer. [[User:HotdogPi|HotdogPi]] ([[User talk:HotdogPi|talk]]) 14:42, 10 May 2021 (UTC)

: Agree with basically all of these. Will take some effort to implement, but this seems like a much better way of organizing things IMO. Any objections from anyone else? [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 15:08, 10 May 2021 (UTC)
:: I would like to register a very strong opposite-of-an-objection. Mean to say, I'd like to vote in favor of all of these items -- especially if I don't have to do too much of the work, since I'm still very much more likely to break anything related to LifeWiki categories, than to be able to fix them successfully. [[User:Dvgrn|Dvgrn]] ([[User talk:Dvgrn|talk]]) 15:42, 10 May 2021 (UTC)
::: Should be all done now. Just a few entries left in [[Special:WantedCategories]] but those should go away on their own shortly. [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 03:27, 11 May 2021 (UTC)
:::: Nevermind, they don't seem to want to go away. Dangit! This was one of the few Special pages that was actually working properly! [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 21:01, 11 May 2021 (UTC)
::::: Alright, looks like editing the affected articles worked. (thanks [[User:GUYTU6J]]) [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 11:27, 12 May 2021 (UTC)

== "Featured article" system? ==

I proposed this yesterday on the [[Discord]] (which has it's own page now, yay!), but I'm going to do it formally here. The "featured article" system would be similar to the [https://en.wikipedia.org/wiki/Wikipedia:Featured_articles current system] on Wikipedia, a collection of LifeWiki's best articles. We could also replace the "this week's featured article" on the main page with actual featured articles that are LifeWiki's best (currently I believe only about half of those articles are even of somewhat good quality or above) and the system would also encourage the improvement of existing articles. The challenges I see are:

A) What are the "featured article criteria" going to be? Very few articles on LifeWiki are anywhere near the [https://en.wikipedia.org/wiki/Wikipedia:Featured_article_criteria Wikipedia featured article criteria], even if you take out the sourcing requirements.

B) How are we going to nominate a potential featured article and then promote it if it's good enough? There are far too few active LifeWiki editors to run it through something similar to the [https://en.wikipedia.org/wiki/Wikipedia:Featured_article_candidates Wikipedia featured article candidates].

And also, custom signatures. '''[[User:Goldenratio|Goldenratio]]''' [[User talk:Goldenratio|talk]] • [[Special:Contributions/Goldenratio|contribs]] 14:19, 13 May 2021 (UTC)

== Link Catagolue for glider guns ==

The recent creation of glider gun collection on Catagolue raised this series of question. Should we link to the collection on the articles for guns? If yes, how to design the format?

For instance, in the case of [[Gosper glider gun]] the possibilities are

<nowiki>{{LinkCatagolue|yl30_1_5_74055a5f5e513fd2e62fb8d6117d3f03|patternname=Gosper glider gun|format=linear growth}}</nowiki>

<nowiki>{{LinkCatagolue|gun_30|patternname=Gosper glider gun|format=gun}}</nowiki>

<nowiki>{{LinkCatagolue|guntrue_30|patternname=Gosper glider gun|format=true-period gun}}</nowiki>

The first one (with linear growth apgcode) already exists in the article; but for other guns there may not be a ready yl identifier. The second one links to the smallest gun collection and the third leads to the true-period gun collection, which may not be the actual gun on the article (consider [[twogun]]). [[User:GUYTU6J|GUYTU6J]] ([[User talk:GUYTU6J|talk]]) 13:17, 26 June 2021 (UTC)

(EDIT: How do I suppress the hypothetical Category:Pages using gun apgcodes and Category:Pages using true-period gun apgcodes on this page?)

: Apologies for the late reply, I apparently missed this while skimming [[Special:RecentChanges]].

: I'd say we should stick with the status quo for now. The <tt>yl</tt> objects give us, at least in a few cases, syntheses and/or sample soups, while the other options don't really provide any additional information. By the way, I can use <tt>stdin</tt> to find the apgcode of any linear growth, and I even have a list somewhere of apgcodes of certain linear growths on the wiki, but I didn't add them because I didn't think they'd be particularly useful. That might change, though, if and when Shinjuku is updated to support linear growth syntheses, because then we'll be able to use the Box™ to submit the remaining synths from the wiki and have them show up on Catagolue with (hopefully) little to no hassle.

: P.S. I suppressed the categories in your message using <tt><nowiki><nowiki></nowiki></tt>. [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 21:59, 2 July 2021 (UTC)

== Syntheses in infobox ==

As a slightly-less-awkward solution to the "canonical vs. cheapest synthesis" problem, I've put together [[User:Ian07/Test|a working prototype]] that distinguishes between the canonical version of the pattern and its variant with the cheapest synthesis, with links to each, in the "Glider synthesis" and "Identifiers" sections. Thoughts? [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 22:19, 10 July 2021 (UTC)

: The only objection on Discord was some feedback about making the RCT footnote less clunky, so I've now implemented this for the relevant templates and subtemplates. [[User:MathAndCode]] also noted that they were planning on doing something like this themselves. [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 20:05, 11 July 2021 (UTC)

== Future of the ''rulespecial'' parameter ==

[[User:Freywa]] has told me that he thinks the ''rulespecial'' parameter should be removed from [[Template:PatternDownload]]. He has been removing it from various pages and I reverted these changes as they were done without discussion, but it did get me thinking about whether the parameter is really necessary. Usually it just lists Conway's Game of Life as the one "important" rule, and I'd imagine that if we start writing articles about OCA patterns, they would probably just list the one rule that's already named in the article title.

I've thought intermittently about putting together some sort of template together to automatically parse ''rulemin'' and ''rulemax'' to check against a list of "important" rules and automatically list them in the infobox if they fall within the range. It would take some finagling, but it might be feasible, at least for outer-totalistic rules. But that's only going to be if there's sufficient demand. Do people still find this information useful or at least potentially useful, or should it go the way of [[LifeWiki:Tiki_bar/Archive/2019#Help_Wanted_with_templates_and_general_review|''life105'' and ''life106'']]? [[User:Ian07|Ian07]] ([[User talk:Ian07|talk]]) 07:03, 15 July 2021 (UTC)

: I'm definitely in favor of this particular simplification of the infobox. ''rulespecial'' is one of the items that I've filled in from the template without really thinking about it, for far too many articles. The other big annoyances are ''heat'', ''volatility'', and ''strict volatility''... collectively they clutter up the infobox in a lot of cases where they don't really provide any interesting information. They actually make it less pleasant to write articles, and thus decrease the chance that articles get written. [[User:Dvgrn|Dvgrn]] ([[User talk:Dvgrn|talk]]) 12:30, 15 July 2021 (UTC)

:: +1 for getting rid of ''heat'', ''volatility'' and ''strict volatility'', I don't think they give useful information except for oscs with (strict) volatility 1. E.g. Do you remember the volatility of [[Silver's p5]] / [[HWSS emulator]] and/or has this been useful for you? [[User:Scorbie|Scorbie]]

Talk:Nihonium

2021-07-08T06:34:43Z

Scorbie: Discussion for making this page

I think a discussion on whether this pattern should be made as a separate page is needed,
because of [[LifeWiki:Notability#General_notability_guideline| this section in the notability guidelines]]:

<blockquote>
To prevent overenthusiastic edits and conflicts of interest, a commonly accepted rule is that the discoverer of a pattern, inventor of new terminology, writer of a program, etc., etc., should not be the one to document that pattern, term, or program on the LifeWiki
</blockquote>

Not stating that this page should be discarded, but still I think reasons why it needs a wiki page from Freywa is needed.

Talk:Tutorials/Finding conduits

2020-12-30T01:43:46Z

Scorbie: Agreed to Goldenratio

Errr... this is way too long. Maybe split it into Tutorials/Catalyses and the actual Tutorials/Finding Conduits and shorten/simplify those as well? [[User:Goldenratio|Goldenratio]] ([[User talk:Goldenratio|talk]]) 23:35, 29 December 2020 (UTC)

: Agreed. [[User:Scorbie|Best wishes to you, Scorbie]] ([[User talk:Scorbie|talk]]) 01:43, 30 December 2020 (UTC)

RLE:P7-pipsquirter-scorbie

2020-12-17T14:30:00Z

Scorbie: Make RLE for a small form of the pipsquirter

#C Reduced Period 7 pipsquirter
#C Dongook Lee, 20 Nov 2019
#C https://conwaylife.com/forums/viewtopic.php?p=85532#p85532
x = 14, y = 20, rule = B3/S23
5bo$5bo2$3bo3bo$b3obob3o$o4bo4bo$b4obobobo$4bobo4b2o$b2obo2bob2o2bo$2b
obo3bobob2o$2bo2bo4bobo$b2o7bo2bo$6bo4b3o$7b4o$11bo$6bobob2o$4b3ob2o$
3bo3bo3b3o$3b2o2bob2o2bo$8bobo!

P7 pipsquirter

2020-12-17T14:25:26Z

Scorbie: /* Gallery */ Fix typo

{{Oscillator
|name = Pipsquirter 2
|pname = pipsquirter2
|c = 89
|bx = 13
|by = 22
|p = 7
|m = 7
|h = 15.4
|v = 0.34
|discoverer = Noam Elkies
|discoveryear = 1999
|rulemin = B3/S23
|rulemax = B38/S235678
|rulespecial = [[Conway's Game of Life|Conway Life]]
|isorulemin = B3-c/S23-a
|isorulemax = B34e5ai6cn7c8/S234acqrwz5678
|plaintext = true
|rle = true
|animated = true
|apgcode = xp7_03iajaqjk46zg2v0er8q6he8zp9gf8ck3sj2zxd55d2odzy2321
|viewerconfig = #C [[ GPS 3 ZOOM 12 LOOP 7 ]]
}}
'''Pipsquirter 2''' is a {{period|7}} [[pipsquirter]] discovered by [[Noam Elkies]] in August, {{year|1999}}.<ref>{{CiteLexicon|lex_r.htm#reflector|name=reflector}}</ref> Because of its easily-accessible [[domino]] [[spark]], it is useful in the construction of larger patterns such as the [[p49 glider shuttle]], the first known period {{period|49|brief}} oscillator.

==As a reflector==
Pipsquirter 2 is most useful because of its ability to act as a 90-degree [[glider]] [[reflector]] (see [[p7 bouncer]]) when it is combined with a [[block]], [[boat]] and [[eater 1]]. It takes 9 [[generation]]s to recover from the impact, and the input path (in green) and output path (in red) of the glider are shown below. This reaction is the basis of the p49 glider shuttle and the [[bricklayer]].
[[Image:pipsquirter2reflector.png|framed|center|Pipsquirter 2 acting as a reflector {{JavaRLE|pipsquirter2reflector|brief}}]]
A version of the pipsquirter [[stator]] with slightly higher [[clearance]] is shown in the [[p7 bouncer]] article.



==Gallery==
{|
|[[Image:P7-pip-kasuha.gif|framed|left|Variant by Karel Suhajda, 24 Jan 2003 {{JavaRLE|p7-pip-kasuha|brief}}]]
|[[Image:P7-pip-scorbie.gif|framed|left|Thinner form {{JavaRLE|p7-pip-scorbie|brief}}]]
|[[Image:True-p56-gun.gif|framed|left|True period 56 gun {{JavaRLE|true-p56-gun.rle|brief}}]]
|}

==See also==
*[[Pipsquirter 1]]

==References==
<references/>

== External links ==
{{LinkLexicon|lex_p.htm#p7pipsquirter|name=p7 pipsquirter}}
{{LinkCatagolue|xp7_03iajaqjk46zg2v0er8q6he8zp9gf8ck3sj2zxd55d2odzy2321}}

{{Sparker|p=7|type=domino|strength=strong}}

RLE talk:P7-pipsquirter-kasuha

2020-12-17T14:24:22Z

Scorbie: Wish I reverted the speedydeletion template

Oof I still didn't get how this works perfectly, but I think I shouldn't have requested this for speedy deletion. 
[[User:Scorbie|Best wishes to you, Scorbie]] ([[User talk:Scorbie|talk]]) 14:24, 17 December 2020 (UTC)

P7 pipsquirter

2020-12-17T14:14:52Z

Scorbie: Amended the GIF files and updated outdated info (and patterns)

{{Oscillator
|name = Pipsquirter 2
|pname = pipsquirter2
|c = 89
|bx = 13
|by = 22
|p = 7
|m = 7
|h = 15.4
|v = 0.34
|discoverer = Noam Elkies
|discoveryear = 1999
|rulemin = B3/S23
|rulemax = B38/S235678
|rulespecial = [[Conway's Game of Life|Conway Life]]
|isorulemin = B3-c/S23-a
|isorulemax = B34e5ai6cn7c8/S234acqrwz5678
|plaintext = true
|rle = true
|animated = true
|apgcode = xp7_03iajaqjk46zg2v0er8q6he8zp9gf8ck3sj2zxd55d2odzy2321
|viewerconfig = #C [[ GPS 3 ZOOM 12 LOOP 7 ]]
}}
'''Pipsquirter 2''' is a {{period|7}} [[pipsquirter]] discovered by [[Noam Elkies]] in August, {{year|1999}}.<ref>{{CiteLexicon|lex_r.htm#reflector|name=reflector}}</ref> Because of its easily-accessible [[domino]] [[spark]], it is useful in the construction of larger patterns such as the [[p49 glider shuttle]], the first known period {{period|49|brief}} oscillator.

==As a reflector==
Pipsquirter 2 is most useful because of its ability to act as a 90-degree [[glider]] [[reflector]] (see [[p7 bouncer]]) when it is combined with a [[block]], [[boat]] and [[eater 1]]. It takes 9 [[generation]]s to recover from the impact, and the input path (in green) and output path (in red) of the glider are shown below. This reaction is the basis of the p49 glider shuttle and the [[bricklayer]].
[[Image:pipsquirter2reflector.png|framed|center|Pipsquirter 2 acting as a reflector {{JavaRLE|pipsquirter2reflector|brief}}]]
A version of the pipsquirter [[stator]] with slightly higher [[clearance]] is shown in the [[p7 bouncer]] article.



==Gallery==
{|
|[[Image:P7-pip-kasuha.gif|framed|left|Variant by Karel Suhajda, 24 Jan 2003 {{JavaRLE|p7-pip-kasuha.rle|brief}}]]
|[[Image:P7-pip-scorbie.gif|framed|left|Thinner form {{JavaRLE|p7-pip-scorbie.rle|brief}}]]
|[[Image:True-p56-gun.gif|framed|left|True period 56 gun {{JavaRLE|true-p56-gun.rle|brief}}]]
|}

==See also==
*[[Pipsquirter 1]]

==References==
<references/>

== External links ==
{{LinkLexicon|lex_p.htm#p7pipsquirter|name=p7 pipsquirter}}
{{LinkCatagolue|xp7_03iajaqjk46zg2v0er8q6he8zp9gf8ck3sj2zxd55d2odzy2321}}

{{Sparker|p=7|type=domino|strength=strong}}

File:True-p56-gun.gif

2020-12-17T14:12:05Z

Scorbie: True period 56 gun utilizing pipsquirter 2 by Chris Cain, 03 Apr 2018 https://www.conwaylife.com/forums/viewtopic.php?f=2&t=1437&start=550#p58835

== Summary ==
True period 56 gun utilizing pipsquirter 2
by Chris Cain, 03 Apr 2018
https://www.conwaylife.com/forums/viewtopic.php?f=2&t=1437&start=550#p58835

File:P7-pip-scorbie.gif

2020-12-17T13:58:50Z

Scorbie: Reduced form of the period 7 pipsquirter on 20 Nov 2019 https://conwaylife.com/forums/viewtopic.php?p=85532#p85532

== Summary ==
Reduced form of the period 7 pipsquirter on 20 Nov 2019
https://conwaylife.com/forums/viewtopic.php?p=85532#p85532

File:P7-pip-kasuha.gif

2020-12-17T12:29:23Z

Scorbie: Scorbie uploaded a new version of File:P7-pip-kasuha.gif

== Summary ==
Period-7 Pipsquirter variant by Karel Suhajda, 24 Jan 2003

File:P7-pip-kasuha.gif

2020-12-17T12:28:41Z

Scorbie: Scorbie uploaded a new version of File:P7-pip-kasuha.gif

== Summary ==
Period-7 Pipsquirter variant by Karel Suhajda, 24 Jan 2003

File:P7-pip-kasuha.gif

2020-12-17T12:26:50Z

Scorbie: /* Summary */

== Summary ==
Period-7 Pipsquirter variant by Karel Suhajda, 24 Jan 2003

File:P7-pip-kasuha.gif

2020-12-17T12:25:11Z

Scorbie: Period-7 Pipsquirter variant Variant by Karel Suhajda, 24 Jan 2003

== Summary ==
Period-7 Pipsquirter variant
Variant by Karel Suhajda, 24 Jan 2003

Help:Images

2020-12-17T06:11:10Z

Scorbie: /* Capturing screenshots */ Elaborate explanation

Many pages on the wiki are greatly improved by the addition of a few images. If you have an image you would like to add to a page, feel welcome to add one. This page provides details on how to create good-quality and consistent images, what the required file formats are, and how to upload the images.

==Sources of images==
The most common source of [[LifeWiki:About|LifeWiki]] images is a simple screenshot of a pattern; see the section on [[#Capturing Screenshots|screenshots]] for details on how to create them. Images that you have created yourself are also acceptable (provided they are LifeWiki-relevant and are high-quality).

Images on web sites other than LifeWiki can '''not''' in general be copied here. Adding images that have been copied from elsewhere is often a violation of copyright law and such images will be deleted on sight. Contact an [[LifeWiki:Administrators|administrator]] if you have questions about the legality of an image.

===Capturing screenshots===
Screenshots are the most common source of images on the wiki. The following instructions provide some tips on how to create screenshots (including GIFs) of patterns.


Scorbie's [https://github.com/Scorbie/giffer Giffer] Python script for Golly allows you to create a GIF of a selected pattern. You can click the "Code" and "Download Zip" buttons, unzip the downloaded zip file, and place the three .py files into your <tt>Scripts/Python</tt> folder in Golly.

Next, open Golly and select the desired pattern. Per wiki standard, the area selected should be the pattern's ''maximum'' bounding box, plus exactly one cell of margin in each direction. Click on <tt>giffer.py</tt> and it ''should'' open a dialog box containing the first or all of the many parameters for the GIF. The following options are available:

* Number of generations to run (default is 4; set to 1 for static images and for still lifes)
* Number of frames per generation (leave as 1)
* Time in centiseconds between frames (default is 50; recommended for wiki is 40 for most low-period patterns)
* Size of each cell in pixels, excluding gridlines (default is 14)
* Width of gridlines in pixels (default is 2)
** Note: Although the defaults for these are 14 and 2, most images on the wiki use 15 and 1; you might find it convenient to replace these default values in lines 92-94 of <tt>giffer.py</tt>
* Offset of the total period (over the course of the GIF period, move this many cells in the X and Y directions; right is positive X and down is positive Y)
** Note: This is only necessary for spaceships and other non-stationary objects
* File name (default is <tt>out.gif</tt>)
** Note: File will be placed in the same folder as the script; you might find it convenient to move the three scripts into their own folder within <tt>Scripts/Python</tt>

This will always return a GIF file assuming it works, but you can turn a static image into a PNG by opening it up in an image editing program and saving it as a PNG.

Do '''not''' save images as BMP files. That format is not supported by web browsers, and the files are very large in size. All animated images should be saved as GIFs and all static pattern images should be saved as PNGs. Other images may be any of GIF, JPG, or PNG, depending on which is best-suited to the particular image.

===Tips===
These are some tips on how to get the best looking images possible and how to make your images conform to the style of the images that already exist on LifeWiki.

* Make the image an appropriate size. If the image is the main image that will be displayed at the top-right of a pattern page, then go to a zoom level that makes the pattern image roughly 200 pixels wide (for certain extremely small patterns such as [[block]] it is okay to stay under this guideline). Do not blow up or shrink images in photo editing software, as they tend to blur and/or distort the grid. Animated pattern images can be much larger, and the upper size limit for them is about 800 pixels (and 600 pixels high). There are no strict guidelines for sizes of other images, so just use your best judgment.
* Include one row and column of dead cells around the pattern. Pattern images tend to look nicer when there's some "buffer" space around them. Don't include more than one row and column of dead cells unless the image was taken with a very far-away zoom level (meaning the cells are quite small) or there is some other good reason to do so (e.g., if images are provided to be compared to each other, it might be preferable that both images have the same size canvas even if one doesn't fill the entire canvas).
* Animated images should run at approximately 2.5 generations per second, though some particularly long animations might be better-suited to faster animations. In order to make [[spaceship]] animations smooth, there should be multiple frames per generation (see the animated image at [[glider]] for an example). In general the grid should be two pixels wide (rather than one pixel wide, as in the default grid at [http://www.conwaylife.com ConwayLife.com]) for animated images to reduce "grid flicker".

==Naming images==
There are no official rules about how to name your image, but here are some general guidelines.
*Avoid cryptic names that only you will understand; spell out words that do not have standard abbreviations. Other editors will find it much easier to use the image if they can figure out what it is from the name alone.

*If you make a mistake naming your image, there is no way to rename it. The only option is to upload an image using a new name, and request [[LifeWiki:Deletion_policy|deletion]] of the original image. Be sure to fix any links that were made using the original file name.

==Uploading images==
Once you have an appropriate image, the next step in adding it to the wiki is uploading it.

===Pattern images===
When a pattern page is created, a link to an image for that pattern is automatically created near the top-right of the page (as long as you have "nofile=true" or "rle=true" set in that [[LifeWiki:Pattern_pages#Pattern_templates|pattern's template]]). Simply click on that link and fill out the form. In the summary box, please type "<nowiki>{{PatternImage}}</nowiki>" (without the quotes), as that will help the LifeWiki find and appropriately index the image.

===Animated images===
To upload an animated image for a pattern, first set the "animated=true" in the template at the top of that pattern's page. This will create a red link just under the pattern's main image; click that link and fill out the form that pops up. In the summary box, please type "<nowiki>{{AnimatedImage}}</nowiki>" (without the quotes), as that will help the LifeWiki find and appropriately index the image.

===Other images===
At the bottom of the left-hand menu on any wiki page, under "toolbox", is an "Upload File" link. Clicking that link will pull up a window where you can browse to find the file you wish to upload. Fill in the remaining entries on the page:
* '''Destination Filename''': Provide an appropriate [[#Naming Images|name]] for the file
* '''Summary''': Enter enough information so that other people can identify the image. If the image is a static image of a pattern, please enter "<nowiki>{{StaticImage}}</nowiki>" somewhere (without the quotes), as that will help the LifeWiki find and appropriately index the image.
Hit '''Upload File''' and you're done.

If you are uploading a large number of images, you will probably find it most convenient to use your browser's back button to return to the upload page, and just modify the page as necessary for the next file.

If you made a mistake in the summary of the image, this can be modified from the "Image:" page by clicking edit. This will pull up a [[Help:Quick editing guide|standard wiki edit window]].

Note that LifeWiki is not a general image-hosting server. Any non-LifeWiki images that are uploaded will be deleted on sight.

===Replacing images===
Any image can be replaced; use the link "Upload a new version of this file" on the image page. In general this is only appropriate if your new image is of significantly better quality than the existing image. Note that replacing images does not add to your edit count.

==Adding images to pages==
To add an image to a page, you need to use the <nowiki>[[Image:]]</nowiki> tag. At its most basic, this mean inserting the text <nowiki>[[Image:filename.png]]</nowiki> where you would replace "filename.png" with whatever name you chose for your file when uploading it. This will insert the image right into the line of text.

For most purposes, you usually do not want to include an image in the middle of a paragraph of text. In general, images such as pattern screenshots should be shown at sizes of 125px to 250px in size. 125px is usually appropriate if there are multiple images on a page; 250px is more common if there is a single important image.

The simplest way to change the size of an image is to add the desired width to the Image tag. So '''<nowiki>[[Image:filename.png|150px]]</nowiki>''' produces a thumbnail of "filename.png" that is 150px wide. Note that you are only allowed to reduce the size of an image, not enlarge it. If you will want your image shown at the side of the page with the rest of the text wrapping around it, add a position to the Image tag. For example, <nowiki>[[Image:filename.png|right]]</nowiki> would place the image to the right of the paragraph.

You can also specify the height of an image rather than the width, but this is more difficult. You must first specify a width that you are sure will be higher than it should be, then follow it by an 'x' and the desired value for the height. E.g.: '''<nowiki>[[Image:filename.png|300x200px]]</nowiki>''' produces an images that is no more than 300 pixels wide and 200 pixels tall. Using this syntax, you can specify both the maximum width and height for a whole set of images in order to standardize a set of images with varying aspect ratios.

However, this simple command is only appropriate for icons and small images, because it does not actually create a thumbnail version of the image. For any larger image, you want to specify "|thumb" or "|thumbnail" in order to ensure that the wiki generates a reduced-size version of the image. For example, '''<nowiki>[[Image:acorn_final.png|thumb|120px]]</nowiki>''' produces the image at the right. [[Image:acorn_final.png|thumb|120px]] In general the "|120px" part of the command is not needed when doing thumbnails; the thumbnail will default to the reader's preferred thumbnail size. If the image itself is small enough that you don't need to specify the "|thumb" parameter, but you still want a frame around the image, you can specify the "|framed" parameter.

Thumbnail images are by default positioned on the right hand side of the page, as evident with the example in the previous paragraph. If you want the image at the top of the paragraph, you would put the Image tag at the start of the paragraph. If you want a thumbnail to appear on the left or in the middle, use the following format: <nowiki>[[Image:filename.jpg|left|thumb]]</nowiki>. Replace "|left" with "|center" or "|centre" to place it in the middle. Sometimes you will see a thumbnail with the "|right" command specified; this does not actually do anything, as thumbnails are always on the right unless told otherwise. One final placement option is "|none" which overrides the default right-alignment and places the thumbnail at that location without "floating" the image or wrapping text around it.

[[Image:glider.png|left|framed|This is a glider]]It is generally recommended that you provide a description of your image. This is accomplished by adding the description to the end of your tag. The complete version of the image command used to create the image shown at the left hand side of this paragraph is: '''<nowiki>[[Image:glider.png|left|framed|This is a glider]]</nowiki>'''. (Note that if you do not include either "|framed" or "|thumb" in this command, you will not see the caption; the text will only be shown if you hover over the image.)

When you are adding images it is highly recommended that you use the '''Show preview''' button before saving the page. This is in general good practice when editing wiki pages, but becomes more important when you start adding more complicated commands such as images.

===Multiple thumbnails===
When adding images to an "image gallery" section of a page, you have two options; either use the <nowiki><gallery></nowiki> tag, which basically takes care of formatting and thumbnailing for you, or insert each image manually. If the images that you wish to add vary greatly in size, then the <nowiki><gallery></nowiki> tag is preferred because the code is easier and it does all the thumbnailing for you. If you only have one image or all of the images are roughly the same size, inserting each image via an Image tag is preferred, and without thumbnailing if possible; thumbnailing pattern images blurs the grid lines and generally makes them look ugly.

==External links==
*[http://www.gimp.org/ The GIMP] - A free, open-sourced image editor
*[http://getpaint.net/index2.html Paint.NET] - A free .Net based image editor for Windows XP or Vista
*[http://meta.wikimedia.org/wiki/Help:Images_and_other_uploaded_files Help:Images and other uploaded files] at WikiMedia.org

{{ContributeNavbox}}

User:Scorbie

2020-12-13T15:19:46Z

Scorbie: /* Todo */

== Self-Intro ==

Hello, this is Scorbie. I go by the same name in the forums and Conwaylife Lounge in Discord as well.

I hang out in Conway's Game of Life most of the time, especially with stationary objects; e.g. oscillators, drifters, and stable catalysts. 
I think composing the parts into a bigger interesting pattern like Lego blocks made me interested in those objects.

I have plans for several projects in pattern searching and automated pattern mining, but sadly I don't have the efficiency to do that currently. Life is hard.

== Todo ==

* Expand [[pipsquirter 2]]
** Add Reduced form that pretty much obsoletes most of them
** Fix wrong attribution at the bottom left (that one is actually a newer reduced form by Karel Suhajda)
** Change screenshots to GIFs in [[pipsquirter 2#Gallery|Gallery]]

* Expand [[lightweight emulator]], [[middleweight emulator]], and [[heavyweight emulator]]
** Add one-sided and two-sided high-clearance variants

* Delete erroneous statements in [[spark#Strength_of_sparkers|Strength of sparkers]]
** Add disclaimer in [[:Category:Strong sparkers]]

* Elaborate LW/MW/HW sparkers (not emulators!) [[User_talk:Entity_Valkyrie_1#P4_heavyweight_volcano|Rationale]]

User:Scorbie

2020-12-13T15:15:20Z

Scorbie: /* Todo */

User:Scorbie

2020-12-13T15:09:26Z

Scorbie: Elaborate Todo: Strength of sparkers

User:Scorbie

2020-12-13T15:03:15Z

Scorbie: Minor style edit

User:Scorbie

2020-12-13T15:02:48Z

Scorbie: Added Todo List

== Self-Intro ==

Hello, this is Scorbie. I go by the same name in the forums and Conwaylife Lounge in Discord as well.

I hang out in Conway's Game of Life most of the time, especially with stationary objects; e.g. oscillators, drifters, and stable catalysts. 
I think composing the parts into a bigger interesting pattern like Lego blocks made me interested in those objects.

I have plans for several projects in pattern searching and automated pattern mining, but sadly I don't have the efficiency to do that currently. Life is hard.

== TODO ==

* Expand [[pipsquirter 2]]
** Add Reduced form that pretty much obsoletes most of them
** Fix wrong attribution at the bottom left (that one is actually a newer reduced form by Karel Suhajda)
** Change screenshots to GIFs in [[pipsquirter 2#Gallery|Gallery]]

* Expand [[lightweight emulator]], [[middleweight emulator]], and [[heavyweight emulator]]
** Add one-sided and two-sided high-clearance variants

* Delete erroneous statements in [[spark#Strength_of_sparkers|Strength of sparkers]]

Help:Images

2020-12-13T11:23:45Z

Scorbie: Remove {{outdated}} template that was added before giffer.py when people used screenshots

Many pages on the wiki are greatly improved by the addition of a few images. If you have an image you would like to add to a page, feel welcome to add one. This page provides details on how to create good-quality and consistent images, what the required file formats are, and how to upload the images.

==Sources of images==
The most common source of [[LifeWiki:About|LifeWiki]] images is a simple screenshot of a pattern; see the section on [[#Capturing Screenshots|screenshots]] for details on how to create them. Images that you have created yourself are also acceptable (provided they are LifeWiki-relevant and are high-quality).

Images on web sites other than LifeWiki can '''not''' in general be copied here. Adding images that have been copied from elsewhere is often a violation of copyright law and such images will be deleted on sight. Contact an [[LifeWiki:Administrators|administrator]] if you have questions about the legality of an image.

===Capturing screenshots===
Screenshots are the most common source of images on the wiki. The following instructions provide some tips on how to create screenshots (including GIFs) of patterns.


Scorbie's [https://github.com/Scorbie/giffer Giffer] Python script for Golly allows you to create a GIF of a selected pattern. Place the three .py files into your <tt>Scripts/Python</tt> folder in Golly.

Next, open Golly and select the desired pattern. Per wiki standard, the area selected should be the pattern's ''maximum'' bounding box, plus exactly one cell of margin in each direction. Click on <tt>giffer.py</tt> and it ''should'' open a dialog box containing the first of many parameters for the GIF. The following options are available:

* Number of generations to run (default is 4; set to 1 for static images and for still lifes)
* Number of frames per generation (leave as 1)
* Time in centiseconds between frames (default is 50; recommended for wiki is 40 for most low-period patterns)
* Size of each cell in pixels, excluding gridlines (default is 14)
* Width of gridlines in pixels (default is 2)
** Note: Although the defaults for these are 14 and 2, most images on the wiki use 15 and 1; you might find it convenient to replace these default values in lines 92-94 of <tt>giffer.py</tt>
* Offset of the total period (over the course of the GIF period, move this many cells in the X and Y directions; right is positive X and down is positive Y)
** Note: This is only necessary for spaceships and other non-stationary objects
* File name (default is <tt>out.gif</tt>)
** Note: File will be placed in the same folder as the script; you might find it convenient to move the three scripts into their own folder within <tt>Scripts/Python</tt>

This will always return a GIF file assuming it works, but you can turn a static image into a PNG by opening it up in an image editing program and saving it as a PNG.

Do '''not''' save images as BMP files. That format is not supported by web browsers, and the files are very large in size. All animated images should be saved as GIFs and all static pattern images should be saved as PNGs. Other images may be any of GIF, JPG, or PNG, depending on which is best-suited to the particular image.

===Tips===
These are some tips on how to get the best looking images possible and how to make your images conform to the style of the images that already exist on LifeWiki.

* Make the image an appropriate size. If the image is the main image that will be displayed at the top-right of a pattern page, then go to a zoom level that makes the pattern image roughly 200 pixels wide (for certain extremely small patterns such as [[block]] it is okay to stay under this guideline). Do not blow up or shrink images in photo editing software, as they tend to blur and/or distort the grid. Animated pattern images can be much larger, and the upper size limit for them is about 800 pixels (and 600 pixels high). There are no strict guidelines for sizes of other images, so just use your best judgment.
* Include one row and column of dead cells around the pattern. Pattern images tend to look nicer when there's some "buffer" space around them. Don't include more than one row and column of dead cells unless the image was taken with a very far-away zoom level (meaning the cells are quite small) or there is some other good reason to do so (e.g., if images are provided to be compared to each other, it might be preferable that both images have the same size canvas even if one doesn't fill the entire canvas).
* Animated images should run at approximately 2.5 generations per second, though some particularly long animations might be better-suited to faster animations. In order to make [[spaceship]] animations smooth, there should be multiple frames per generation (see the animated image at [[glider]] for an example). In general the grid should be two pixels wide (rather than one pixel wide, as in the default grid at [http://www.conwaylife.com ConwayLife.com]) for animated images to reduce "grid flicker".

==Naming images==
There are no official rules about how to name your image, but here are some general guidelines.
*Avoid cryptic names that only you will understand; spell out words that do not have standard abbreviations. Other editors will find it much easier to use the image if they can figure out what it is from the name alone.

*If you make a mistake naming your image, there is no way to rename it. The only option is to upload an image using a new name, and request [[LifeWiki:Deletion_policy|deletion]] of the original image. Be sure to fix any links that were made using the original file name.

==Uploading images==
Once you have an appropriate image, the next step in adding it to the wiki is uploading it.

===Pattern images===
When a pattern page is created, a link to an image for that pattern is automatically created near the top-right of the page (as long as you have "nofile=true" or "rle=true" set in that [[LifeWiki:Pattern_pages#Pattern_templates|pattern's template]]). Simply click on that link and fill out the form. In the summary box, please type "<nowiki>{{PatternImage}}</nowiki>" (without the quotes), as that will help the LifeWiki find and appropriately index the image.

===Animated images===
To upload an animated image for a pattern, first set the "animated=true" in the template at the top of that pattern's page. This will create a red link just under the pattern's main image; click that link and fill out the form that pops up. In the summary box, please type "<nowiki>{{AnimatedImage}}</nowiki>" (without the quotes), as that will help the LifeWiki find and appropriately index the image.

===Other images===
At the bottom of the left-hand menu on any wiki page, under "toolbox", is an "Upload File" link. Clicking that link will pull up a window where you can browse to find the file you wish to upload. Fill in the remaining entries on the page:
* '''Destination Filename''': Provide an appropriate [[#Naming Images|name]] for the file
* '''Summary''': Enter enough information so that other people can identify the image. If the image is a static image of a pattern, please enter "<nowiki>{{StaticImage}}</nowiki>" somewhere (without the quotes), as that will help the LifeWiki find and appropriately index the image.
Hit '''Upload File''' and you're done.

If you are uploading a large number of images, you will probably find it most convenient to use your browser's back button to return to the upload page, and just modify the page as necessary for the next file.

If you made a mistake in the summary of the image, this can be modified from the "Image:" page by clicking edit. This will pull up a [[Help:Quick editing guide|standard wiki edit window]].

Note that LifeWiki is not a general image-hosting server. Any non-LifeWiki images that are uploaded will be deleted on sight.

===Replacing images===
Any image can be replaced; use the link "Upload a new version of this file" on the image page. In general this is only appropriate if your new image is of significantly better quality than the existing image. Note that replacing images does not add to your edit count.

==Adding images to pages==
To add an image to a page, you need to use the <nowiki>[[Image:]]</nowiki> tag. At its most basic, this mean inserting the text <nowiki>[[Image:filename.png]]</nowiki> where you would replace "filename.png" with whatever name you chose for your file when uploading it. This will insert the image right into the line of text.

For most purposes, you usually do not want to include an image in the middle of a paragraph of text. In general, images such as pattern screenshots should be shown at sizes of 125px to 250px in size. 125px is usually appropriate if there are multiple images on a page; 250px is more common if there is a single important image.

The simplest way to change the size of an image is to add the desired width to the Image tag. So '''<nowiki>[[Image:filename.png|150px]]</nowiki>''' produces a thumbnail of "filename.png" that is 150px wide. Note that you are only allowed to reduce the size of an image, not enlarge it. If you will want your image shown at the side of the page with the rest of the text wrapping around it, add a position to the Image tag. For example, <nowiki>[[Image:filename.png|right]]</nowiki> would place the image to the right of the paragraph.

You can also specify the height of an image rather than the width, but this is more difficult. You must first specify a width that you are sure will be higher than it should be, then follow it by an 'x' and the desired value for the height. E.g.: '''<nowiki>[[Image:filename.png|300x200px]]</nowiki>''' produces an images that is no more than 300 pixels wide and 200 pixels tall. Using this syntax, you can specify both the maximum width and height for a whole set of images in order to standardize a set of images with varying aspect ratios.

However, this simple command is only appropriate for icons and small images, because it does not actually create a thumbnail version of the image. For any larger image, you want to specify "|thumb" or "|thumbnail" in order to ensure that the wiki generates a reduced-size version of the image. For example, '''<nowiki>[[Image:acorn_final.png|thumb|120px]]</nowiki>''' produces the image at the right. [[Image:acorn_final.png|thumb|120px]] In general the "|120px" part of the command is not needed when doing thumbnails; the thumbnail will default to the reader's preferred thumbnail size. If the image itself is small enough that you don't need to specify the "|thumb" parameter, but you still want a frame around the image, you can specify the "|framed" parameter.

Thumbnail images are by default positioned on the right hand side of the page, as evident with the example in the previous paragraph. If you want the image at the top of the paragraph, you would put the Image tag at the start of the paragraph. If you want a thumbnail to appear on the left or in the middle, use the following format: <nowiki>[[Image:filename.jpg|left|thumb]]</nowiki>. Replace "|left" with "|center" or "|centre" to place it in the middle. Sometimes you will see a thumbnail with the "|right" command specified; this does not actually do anything, as thumbnails are always on the right unless told otherwise. One final placement option is "|none" which overrides the default right-alignment and places the thumbnail at that location without "floating" the image or wrapping text around it.

[[Image:glider.png|left|framed|This is a glider]]It is generally recommended that you provide a description of your image. This is accomplished by adding the description to the end of your tag. The complete version of the image command used to create the image shown at the left hand side of this paragraph is: '''<nowiki>[[Image:glider.png|left|framed|This is a glider]]</nowiki>'''. (Note that if you do not include either "|framed" or "|thumb" in this command, you will not see the caption; the text will only be shown if you hover over the image.)

When you are adding images it is highly recommended that you use the '''Show preview''' button before saving the page. This is in general good practice when editing wiki pages, but becomes more important when you start adding more complicated commands such as images.

===Multiple thumbnails===
When adding images to an "image gallery" section of a page, you have two options; either use the <nowiki><gallery></nowiki> tag, which basically takes care of formatting and thumbnailing for you, or insert each image manually. If the images that you wish to add vary greatly in size, then the <nowiki><gallery></nowiki> tag is preferred because the code is easier and it does all the thumbnailing for you. If you only have one image or all of the images are roughly the same size, inserting each image via an Image tag is preferred, and without thumbnailing if possible; thumbnailing pattern images blurs the grid lines and generally makes them look ugly.

==External links==
*[http://www.gimp.org/ The GIMP] - A free, open-sourced image editor
*[http://getpaint.net/index2.html Paint.NET] - A free .Net based image editor for Windows XP or Vista
*[http://meta.wikimedia.org/wiki/Help:Images_and_other_uploaded_files Help:Images and other uploaded files] at WikiMedia.org

{{ContributeNavbox}}

User:Ian07/To-do list

2020-12-13T10:39:21Z

Scorbie: Fix ugly formatting

Feel free to contribute to any of these tasks and remove them from the list if completed:

==Short-term==
*[[apgcode]]: Needs explanation of how linear-growth patterns are encoded
*[[Adjustable spaceship]]: Expand with info on [[half-baked knightship]]s and the [[HighLife]] [[basilisk]]s
*[[Caterloopillar]]: General review, fix grammar
*[[Remini]]: Needs infobox
*[[Symmetry]]: Finish images for hexagonal symmetries section
*[[:Category:Trivial oscillators]] and [[:Category:Oscillators with strict volatility 0.00]] are essentially the same thing, and exist for ease of navigation. Aidan and I [https://discord.com/channels/357922255553953794/370570978188591105/786794700879036426 both agreed] that this wasn't ''too'' terrible of a solution, but it's also not ideal. Prefereably, one of these should redirect to the other, but we were unable to figure out how to do this on LifeWiki. Could [https://en.wikipedia.org/wiki/Template:Category_redirect Template:Category redirect] be imported from Wikipedia?
**I'm just a really really newbie wiki editor, but I did find [https://www.mediawiki.org/wiki/Help:Categories/en#Redirecting_a_category this resource] that says one can redirect a category just as redirecting a page; with some caveats that can be dealt with. Would purging [[:Category:Trivial oscillators]] and then redirecting it to [[:Category:Oscillators with strict volatility 0.00]] work? (Ordered this way around not to interfere with automatically updating new patterns in [[:Category:Oscillators with strict volatility 0.00]]) [[User:Scorbie|Scorbie]] ([[User talk:Scorbie|talk]]) 10:38, 13 December 2020 (UTC)
*[[Template:Conduit]]: appears that some information in the infobox is reliant on output offset in order to appear (see for example [[Fx119 inserter]])
*[[Template:Distinguish]], [[Template:Merge]], [[Template:Merge from]]: currently broken for the use case of multiple parameters due to the lack of a [[Template:Int]], which is called in [[Template:Pagelist]] (if I understand correctly, [[User:Calcyman]] just copied these from Wikipedia)
*These are broken due to MediaWiki update; have now been disabled: [[Template:OscNumbers]], [[Template:OscModNumbers]], [[Template:RotorNumbers]], [[Template:SpaceshipModNumbers]], [[Template:UnitcellNumbers]]
*[[Template:Reflector]]: support ''rotor'' parameter? Seems to be used in several articles anyway e.g. [[p7 bumper]]

==Long-term==
*Replace static images with LifeViewers throughout the wiki where applicable
*Complete transcriptions for [[Lifeline]] (also see [[Talk:Lifeline/project]])
**[[Lifeline Volume 4]] page 10 was formerly missing but has finally been [https://www.conwaylife.com/forums/viewtopic.php?p=95621#p95621 recovered by Heinrich Koenig], so needs to be added to the wiki page
**Update the [[Lifeline Index]] accordingly - there's a comment there explaining how to convert things for a given volume to the updated links (i.e. link to transcribed version instead of scan)
*Update/expand [[tutorials]]
*De-stubbify articles created as part of [[User:AwesoMan3000]]'s [[:Category:Strict still lifes with 12 cells|12SL project]]
*Review [[:Category:Oscillators]] and add categories as part of [[User:Entity Valkyrie]]'s [[:Category:Sparkers|sparker category project]]
*In general, clean up edits by [[Special:Contributions/Entity_Valkyrie|Entity Valkyrie]], [[Special:Contributions/Entity_Valkyrie_2|Entity Valkyrie 2]], and [[Special:Contributions/Pooping_Alien|Pooping Alien]]
*Rule info for certain types of patterns where the rule scripts don't exactly recognize bounded grids:
**[[Torus|toroidal]] patterns - [[wick]]s, [[agar]]s, [[titanic toroidal traveler]]
**[[Induction coil]]s, [[Coolout Conjecture]], [[claw]], [[feather]], [[nine]], [[tail]]
*Update the [[LifeWiki:Editor pages]], most of which have not been substantially changed since 2009
*Per [[LifeWiki:Tiki_bar/Archive/2019#Non-notable_isotropic_rules]], create some articles about notable patterns in alien rules (e.g. [[OCA:HighLife/Bomber]]); however this may still need to be discussed as there were some unanswered questions from that discussion particularly about:
*#how strict the notability guidelines should be, and
*#whether the new pages should be added to the same categories (e.g. should the bomber be added to [[:Category:Spaceships with speed c/6]]?)
*Maybe add rules, glider syntheses, and/or apgcodes for conduits and reflectors? (discuss beforehand)

==LifeWiki bugs==
[[User:Nathaniel]] will most likely have to intervene with these since they seem to be issues with the software itself rather than the content of the wiki; however, other users may be able to find a possible solution or at least identify the cause of the problem.

*[[RLE:Loafer]] is mysteriously listed in many of the special pages despite not being in the main namespace (specifically [[Special:DeadendPages]], [[Special:LongPages]], [[Special:AncientPages]] (here, the "L" in Loafer is lowercase despite being uppercase everywhere else), [[Special:LonelyPages]], [[Special:FewestRevisions]], [[Special:WithoutInterwiki]], [[Special:ShortPages]], [[Special:UncategorizedPages]], [[Special:UnwatchedPages]], and [[Special:AllPages]]
**[[RLE:Lobster]] is also in [[Special:AllPages]] despite, well, not existing, ''and'' being in the wrong namespace at the same time
**I'm pretty sure these were the first two RLE: pages made, and may have predated the actual creation of the namespace, but that shouldn't matter AFAIK since the [https://www.conwaylife.com/w/index.php?title=RLE:Loafer&action=info page information] specifically says it's a page named "Loafer" in the RLE namespace rather than a page named "RLE:Loafer" in the main namespace
*[[Special:BrokenRedirects]]: weirdly, [[RLE:lobster]] -> [[RLE:83p7h1v1]] appears here, and as blue -> red even though it's actually the latter page that exists, not the former
*[[Special:WhatLinksHere]]: namespace filter is broken i.e. sometimes pages that shouldn't appear do appear despite being in the wrong namespace, and others are eliminated despite being in the correct namespace
*Moving certain old pages gives an error (see [https://www.conwaylife.com/forums/viewtopic.php?f=4&t=4219 this thread] for more information; potential solutions have been posted but not all of them have been tried)
*There might be an easier workaround for RLE: and Rule: pages not copying correctly under wikitext display - [[Special:ChangeContentModel|changing the content model]]. If the default model for those two namespaces could be changed to either JavaScript or CSS, they'll be displayed without the formatting that MediaWiki does normally, including spacing and line breaking. The only caveat is that it'll display an ugly and irrelevant message about clearing your cache, but we should be able to remove that via [[MediaWiki:Common.js]]
*Despite almost all links to it being removed, [[Template:LinkWeisstein]] is still listed on [[Special:WantedPages]] and has several additional pages listed on its [[Special:WhatLinksHere/Template:LinkWeisstein|"what links here"]] - possibly some sort of issue with DynamicPageList

==Other to-do lists==
*[[LifeWiki:Task list]] (not used very often, most of these are already addressed)
*[[User:Apple Bottom/TODO]]
**[[User:Apple Bottom/TODO/Life Lexicon]]
*[[User:Dvgrn]]
*[[User:Sokwe]]
*[[User:Ultimium/TODO]]

User:Ian07/To-do list

2020-12-13T10:38:16Z

Scorbie: Add google results regarding category redirection

Feel free to contribute to any of these tasks and remove them from the list if completed:

==Short-term==
*[[apgcode]]: Needs explanation of how linear-growth patterns are encoded
*[[Adjustable spaceship]]: Expand with info on [[half-baked knightship]]s and the [[HighLife]] [[basilisk]]s
*[[Caterloopillar]]: General review, fix grammar
*[[Remini]]: Needs infobox
*[[Symmetry]]: Finish images for hexagonal symmetries section
*[[:Category:Trivial oscillators]] and [[:Category:Oscillators with strict volatility 0.00]] are essentially the same thing, and exist for ease of navigation. Aidan and I [https://discord.com/channels/357922255553953794/370570978188591105/786794700879036426 both agreed] that this wasn't ''too'' terrible of a solution, but it's also not ideal. Prefereably, one of these should redirect to the other, but we were unable to figure out how to do this on LifeWiki. Could [https://en.wikipedia.org/wiki/Template:Category_redirect Template:Category redirect] be imported from Wikipedia?
**I'm just a really really newbie wiki editor, but I did find [https://www.mediawiki.org/wiki/Help:Categories/en#Redirecting_a_category this resource] that says one can redirect a category just as redirecting a page; with some caveats that can be dealt with. Would purging [[:Category:Trivial oscillators]] and then redirecting it to [[:Category:Oscillators with strict volatility 0.00]] work? (Ordered this way around not to interfere with automatically updating new patterns in [[:Category:Oscillators with strict volatility 0.00]][[User:Scorbie|Scorbie]] ([[User talk:Scorbie|talk]]) 10:38, 13 December 2020 (UTC)
*[[Template:Conduit]]: appears that some information in the infobox is reliant on output offset in order to appear (see for example [[Fx119 inserter]])
*[[Template:Distinguish]], [[Template:Merge]], [[Template:Merge from]]: currently broken for the use case of multiple parameters due to the lack of a [[Template:Int]], which is called in [[Template:Pagelist]] (if I understand correctly, [[User:Calcyman]] just copied these from Wikipedia)
*These are broken due to MediaWiki update; have now been disabled: [[Template:OscNumbers]], [[Template:OscModNumbers]], [[Template:RotorNumbers]], [[Template:SpaceshipModNumbers]], [[Template:UnitcellNumbers]]
*[[Template:Reflector]]: support ''rotor'' parameter? Seems to be used in several articles anyway e.g. [[p7 bumper]]

==Long-term==
*Replace static images with LifeViewers throughout the wiki where applicable
*Complete transcriptions for [[Lifeline]] (also see [[Talk:Lifeline/project]])
**[[Lifeline Volume 4]] page 10 was formerly missing but has finally been [https://www.conwaylife.com/forums/viewtopic.php?p=95621#p95621 recovered by Heinrich Koenig], so needs to be added to the wiki page
**Update the [[Lifeline Index]] accordingly - there's a comment there explaining how to convert things for a given volume to the updated links (i.e. link to transcribed version instead of scan)
*Update/expand [[tutorials]]
*De-stubbify articles created as part of [[User:AwesoMan3000]]'s [[:Category:Strict still lifes with 12 cells|12SL project]]
*Review [[:Category:Oscillators]] and add categories as part of [[User:Entity Valkyrie]]'s [[:Category:Sparkers|sparker category project]]
*In general, clean up edits by [[Special:Contributions/Entity_Valkyrie|Entity Valkyrie]], [[Special:Contributions/Entity_Valkyrie_2|Entity Valkyrie 2]], and [[Special:Contributions/Pooping_Alien|Pooping Alien]]
*Rule info for certain types of patterns where the rule scripts don't exactly recognize bounded grids:
**[[Torus|toroidal]] patterns - [[wick]]s, [[agar]]s, [[titanic toroidal traveler]]
**[[Induction coil]]s, [[Coolout Conjecture]], [[claw]], [[feather]], [[nine]], [[tail]]
*Update the [[LifeWiki:Editor pages]], most of which have not been substantially changed since 2009
*Per [[LifeWiki:Tiki_bar/Archive/2019#Non-notable_isotropic_rules]], create some articles about notable patterns in alien rules (e.g. [[OCA:HighLife/Bomber]]); however this may still need to be discussed as there were some unanswered questions from that discussion particularly about:
*#how strict the notability guidelines should be, and
*#whether the new pages should be added to the same categories (e.g. should the bomber be added to [[:Category:Spaceships with speed c/6]]?)
*Maybe add rules, glider syntheses, and/or apgcodes for conduits and reflectors? (discuss beforehand)

==LifeWiki bugs==
[[User:Nathaniel]] will most likely have to intervene with these since they seem to be issues with the software itself rather than the content of the wiki; however, other users may be able to find a possible solution or at least identify the cause of the problem.

*[[RLE:Loafer]] is mysteriously listed in many of the special pages despite not being in the main namespace (specifically [[Special:DeadendPages]], [[Special:LongPages]], [[Special:AncientPages]] (here, the "L" in Loafer is lowercase despite being uppercase everywhere else), [[Special:LonelyPages]], [[Special:FewestRevisions]], [[Special:WithoutInterwiki]], [[Special:ShortPages]], [[Special:UncategorizedPages]], [[Special:UnwatchedPages]], and [[Special:AllPages]]
**[[RLE:Lobster]] is also in [[Special:AllPages]] despite, well, not existing, ''and'' being in the wrong namespace at the same time
**I'm pretty sure these were the first two RLE: pages made, and may have predated the actual creation of the namespace, but that shouldn't matter AFAIK since the [https://www.conwaylife.com/w/index.php?title=RLE:Loafer&action=info page information] specifically says it's a page named "Loafer" in the RLE namespace rather than a page named "RLE:Loafer" in the main namespace
*[[Special:BrokenRedirects]]: weirdly, [[RLE:lobster]] -> [[RLE:83p7h1v1]] appears here, and as blue -> red even though it's actually the latter page that exists, not the former
*[[Special:WhatLinksHere]]: namespace filter is broken i.e. sometimes pages that shouldn't appear do appear despite being in the wrong namespace, and others are eliminated despite being in the correct namespace
*Moving certain old pages gives an error (see [https://www.conwaylife.com/forums/viewtopic.php?f=4&t=4219 this thread] for more information; potential solutions have been posted but not all of them have been tried)
*There might be an easier workaround for RLE: and Rule: pages not copying correctly under wikitext display - [[Special:ChangeContentModel|changing the content model]]. If the default model for those two namespaces could be changed to either JavaScript or CSS, they'll be displayed without the formatting that MediaWiki does normally, including spacing and line breaking. The only caveat is that it'll display an ugly and irrelevant message about clearing your cache, but we should be able to remove that via [[MediaWiki:Common.js]]
*Despite almost all links to it being removed, [[Template:LinkWeisstein]] is still listed on [[Special:WantedPages]] and has several additional pages listed on its [[Special:WhatLinksHere/Template:LinkWeisstein|"what links here"]] - possibly some sort of issue with DynamicPageList

==Other to-do lists==
*[[LifeWiki:Task list]] (not used very often, most of these are already addressed)
*[[User:Apple Bottom/TODO]]
**[[User:Apple Bottom/TODO/Life Lexicon]]
*[[User:Dvgrn]]
*[[User:Sokwe]]
*[[User:Ultimium/TODO]]

User talk:Scorbie

2020-12-13T10:27:13Z

Scorbie: Create talk page to make those red links blue

User:Scorbie

2020-12-13T10:26:17Z

Scorbie: Add Self-Introduction

LifeWiki:Tiki bar

2020-12-08T01:49:45Z

Scorbie: /* Excessive barberpole articles */

LifeWiki:Tiki bar

2020-12-08T01:48:47Z

Scorbie: /* Excessive barberpole articles */

LifeWiki:Tiki bar

2020-12-08T01:48:04Z

Scorbie: /* Excessive barberpole articles */

Talk:Cyclic

2016-07-09T09:48:12Z

Scorbie: Why is this named "cyclic"?

1. Is it named cyclic after some consensus? I haven't heard of this name being used.

2. Also I am not sure if this deserves a name.

I personally think it is okay to bypass #2 in some situations... (Trying to be flexible.) But I strongly think (#1) the name should be agreed upon most forum members.

Talk:P55 pre-pulsar hassler

2016-01-16T08:47:45Z

Scorbie: /* Two 19-cell pseudo still lifes? */

x = 46, y = 30, rule = B3/S23

2$10bo25bo$9bobo23bobo$10bo25bo$15bo15bo$8b5o2b3o11b3o2b5o$7bo4bo5bo9b

o5bo4bo$6bo2bo7b2o9b2o7bo2bo$3bo2bob2o27b2obo2bo$2bobobo5bo21bo5bobobo

$3bo2bo4bobo19bobo4bo2bo$6b2o2bo2bo6bo5bo6bo2bo2b2o$11b2o6b3o3b3o6b2o

3$9b2o25b2o$9bo2bo21bo2bo$10b3o21b3o$6b2o31b2o$6bo2bob2o21b2obo2bo$8b

2obo23bob2o$11bo23bo$11b2o3b2o11b2o3b2o$17bo11bo$14b3o13b3o$14bo17bo!

== Two 19-cell pseudo still lifes? ==

The BTS catalyst there is a strict still life, isn't it?
Also, the RLE seems to point the old one instead of the new one.

Talk:P55 pre-pulsar hassler

2016-01-16T08:45:19Z

Scorbie: /* Two 19-cell pseudo still lifes? */ new section

LifeWiki:Game of Life Status page

2015-12-28T08:57:09Z

Scorbie: /* Velocities of spaceships and related objects */

{{stub}}

==Oscillator periods==

For green status, an oscillator must have a cell that
oscillates at the full period, rather than some smaller factor of that period.
One such cell is sufficient.

Yellow
means that the only known examples contain
no cells that oscillate at the full period.

<table border=1 cellspacing=0 width=500>

<tr>

<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/block.rle 1]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/blinker.rle 2]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/caterer.rle 3]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/mold.rle 4]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/pseudobarberpole.rle 5]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/unix.rle 6]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/burloaferimeter.rle 7]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/figureeight.rle 8]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/workerbee.rle 9]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/24p10.rle 10]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/38p111.rle 11]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/dinnertable.rle 12]</td>

</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/34p13.rle 13]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/tumbler.rle 14]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/pentadecathlon.rle 15]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/achimsp16.rle 16]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/honeythieves.rle 17]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/56p18.rle 18]</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/48p20.rle 20]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/124p21.rle 21]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/36p22.rle 22]</td>
<td bgcolor=#ffa0a0>23</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/38p24.rle 24]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/98p25.rle 25]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle26.rle 26]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/56p27.rle 27]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle28.rle 28]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle29.rle 29]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/queenbeeshuttle.rle 30]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/48p31.rle 31]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/gourmet.rle 32]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/60p33.rle 33]</td>
<td bgcolor=#ffff80>[http://www.conwaylife.com/patterns/honeythieveswithtesttubebaby.rle 34]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/50p35.rle 35]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/22p36.rle 36]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/124p37.rle 37]</td>
<td bgcolor=#ffa0a0>38</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/catereron34p13.rle 39]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/26p40.rle 40]</td>
<td bgcolor=#ffa0a0>41</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p42glidershuttle.rle 42]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p43gliderloop.rle 43]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p44piheptominohassler.rle 44]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p45engine.rle 45]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/twinbeesshuttle.rle 46]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle47.rle 47]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p48toadhassler.rle 48]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/400p49.rle 49]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p50trafficjam.rle 50]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/112p51.rle 51]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/35p52.rle 52]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p53gliderloop.rle 53]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p54shuttle.rle 54]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarhassler55.rle 55]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p56bheptominoshuttle.rle 56]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p57gliderloop.rle 57]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/prepulsarshuttle58.rle 58]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p59gliderloop.rle 59]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/twirlingttetsonsii.rle 60]</td>
</tr><tr>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p61gliderloop.rle 61]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p62blinkerhassler.rle 62]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p63gliderloop.rle 63]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/34p64.rle 64]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p65gliderloop.rle 65]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p66glidershuttle.rle 66]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p67gliderloop.rle 67]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p68gliderloop.rle 68]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p69gliderloop.rle 69]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/78p70.rle 70]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/p71gliderloop.rle 71]</td>
<td bgcolor=#80ff80>[http://www.conwaylife.com/patterns/47p72.rle 72]</td>
</tr><tr>

<td bgcolor=#80ff80 colspan=12>[http://www.conwaylife.com/patterns/osc-p43+.rle All higher periods are known]</td>
</tr>
</table>
'''Most recent discoveries:''' 
Apr 2013: [[P43_glider_loop|p43]] and [[P53_glider_loop|p53]] oscillators [Mike Playle] 
Nov 2010: [[48P31|p31]] oscillator [Matthias Merzenich] 
Apr 2009: [[124P37|p37]] oscillator [Nicolay Beluchenko] 
Feb 2009: [[112P51|p51]] oscillator [Nicolay Beluchenko] 
Nov 2002: [[123P27.1|p27]] oscillator [Noam Elkies] 
Jul 2000: [[134P39.1|p39]] oscillator [Noam Elkies with David Buckingham] 
Aug 1999: [[P49_glider_shuttle|p49]] oscillator [Noam Elkies] 
Dec 1997: [[P57_Herschel_loop_1|p57]] oscillator [Dieter Leithner with David Buckingham] 
Jun 1997: [[258P3_on_Achim's_p11|p33]] oscillator [Noam Elkies, Achim Flammenkamp] 
27 Apr 1997: [[54P17.1|p17]] oscillator [Dean Hickerson] 
17 Apr 1997: [[168P22.1|p22]] oscillator [Noam Elkies]. ([Dean Hickerson] found [[Champagne_glass|a second, unrelated, p22 oscillator]] a day or two later.) 
11 Apr 1997: [[P59_Herschel_loop_1|p59]] oscillator [David Buckingham] 
Oct 1996: [[Herschel_loop|Herschel track]] method of constructing any period 61 or
higher [David Buckingham] 


== Glider reflectors ==

This table indicates whether a period-N glider stream can be reflected 90 degrees by an object whose period is N, or some factor of N.

This may seem to be a rather odd thing to keep track of, but 90-degree glider reflectors are very useful, and happen to be quite difficult to find in Life. Note that this table fits neatly between oscillators and guns -- if you have a gun, you can build a reflector, and if you have a reflector, you can build an oscillator.

Yellow means that the reflector requires the glider stream to have no gaps.

<table border=1 cellspacing=0 width=500>

<tr>
<td bgcolor=#c0c0c0>1</td>
<td bgcolor=#c0c0c0>2</td>
<td bgcolor=#c0c0c0>3</td>
<td bgcolor=#c0c0c0>4</td>
<td bgcolor=#c0c0c0>5</td>
<td bgcolor=#c0c0c0>6</td>
<td bgcolor=#c0c0c0>7</td>
<td bgcolor=#c0c0c0>8</td>
<td bgcolor=#c0c0c0>9</td>
<td bgcolor=#c0c0c0>10</td>
<td bgcolor=#c0c0c0>11</td>
<td bgcolor=#c0c0c0>12</td>
</tr><tr>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#ffa0a0>14</td>
<td bgcolor=#ffa0a0>15</td>
<td bgcolor=#ffa0a0>16</td>
<td bgcolor=#ffa0a0>17</td>
<td bgcolor=#ffa0a0>18</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#ffa0a0>21</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#ffa0a0>23</td>
<td bgcolor=#80ff80>24</td>
</tr><tr>
<td bgcolor=#80ff80>25</td>
<td bgcolor=#ffff80>26</td>
<td bgcolor=#ffa0a0>27</td>
<td bgcolor=#80ff80>28</td>
<td bgcolor=#80ff80>29</td>
<td bgcolor=#80ff80>30</td>
<td bgcolor=#80ff80>31</td>
<td bgcolor=#80ff80>32</td>
<td bgcolor=#80ff80>33</td>
<td bgcolor=#ffa0a0>34</td>
<td bgcolor=#80ff80>35</td>
<td bgcolor=#80ff80>36</td>
</tr><tr>
<td bgcolor=#80ff80>37</td>
<td bgcolor=#ffa0a0>38</td>
<td bgcolor=#ffa0a0>39</td>
<td bgcolor=#80ff80>40</td>
<td bgcolor=#ffa0a0>41</td>
<td bgcolor=#80ff80>42</td>
<td bgcolor=#80ff80>43</td>
<td bgcolor=#80ff80>44</td>
<td bgcolor=#80ff80>45</td>
<td bgcolor=#80ff80>46</td>
<td bgcolor=#80ff80>47</td>
<td bgcolor=#80ff80>48</td>
</tr><tr>
<td bgcolor=#80ff80>49</td>
<td bgcolor=#80ff80>50</td>
<td bgcolor=#80ff80>51</td>
<td bgcolor=#80ff80>52</td>
<td bgcolor=#80ff80>53</td>
<td bgcolor=#80ff80>54</td>
<td bgcolor=#80ff80>55</td>
<td bgcolor=#80ff80>56</td>
<td bgcolor=#80ff80>57</td>
<td bgcolor=#80ff80>58</td>
<td bgcolor=#80ff80>59</td>
<td bgcolor=#80ff80>60</td>
</tr><tr>
<td bgcolor=#80ff80>61</td>
<td bgcolor=#80ff80>62</td>
<td bgcolor=#80ff80>63</td>
<td bgcolor=#80ff80>64</td>
<td bgcolor=#80ff80>65</td>
<td bgcolor=#80ff80>66</td>
<td bgcolor=#80ff80>67</td>
<td bgcolor=#80ff80>68</td>
<td bgcolor=#80ff80>69</td>
<td bgcolor=#80ff80>70</td>
<td bgcolor=#80ff80>71</td>
<td bgcolor=#80ff80>72</td>
</tr><tr>
<td bgcolor=#80ff80 colspan=12>All higher periods are known</td>
</tr>
</table>
'''Most recent discoveries:''' 
28 Aug 2013: p29 independent reflector [Matthias Merzenich] 
25 Aug 2013: p29 dependent reflector [Matthias Merzenich] 
May 2013: p20 [follows from p20 gun] 
Apr 2013: Independent reflector for all periods 43 and over [Mike Playle].
Specifically: p43 and p53 (had nothing); p47 and p51 (had oscillators);
p57 and p61 (had dependent reflectors). 
Sep 2012: p58 independent reflector [Matthias Merzenich] 
Sep 2012: p52 reflector [Matthias Merzenich] 
Feb 2012: p26 dependent reflector [Matthias Merzenich with Mike Playle] 
Nov 2010: p31 reflector [Matthias Merzenich] 
Mar 2010: p37 reflector [Nicolay Beluchenko] 
Dec 2009: p59 reflector [follows from p59 gun] 


== Glider gun true-periods ==
<table border=1 cellspacing=0 width=500>

<tr>
<td bgcolor=#c0c0c0>1</td>
<td bgcolor=#c0c0c0>2</td>
<td bgcolor=#c0c0c0>3</td>
<td bgcolor=#c0c0c0>4</td>
<td bgcolor=#c0c0c0>5</td>
<td bgcolor=#c0c0c0>6</td>
<td bgcolor=#c0c0c0>7</td>
<td bgcolor=#c0c0c0>8</td>
<td bgcolor=#c0c0c0>9</td>
<td bgcolor=#c0c0c0>10</td>
<td bgcolor=#c0c0c0>11</td>
<td bgcolor=#c0c0c0>12</td>
</tr><tr>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#ffa0a0>14</td>
<td bgcolor=#ffa0a0>15</td>
<td bgcolor=#ffa0a0>16</td>
<td bgcolor=#ffa0a0>17</td>
<td bgcolor=#ffa0a0>18</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#ffa0a0>21</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#ffa0a0>23</td>
<td bgcolor=#80ff80>24</td>
</tr><tr>
<td bgcolor=#ffa0a0>25</td>
<td bgcolor=#ffa0a0>26</td>
<td bgcolor=#ffa0a0>27</td>
<td bgcolor=#ffa0a0>28</td>
<td bgcolor=#ffa0a0>29</td>
<td bgcolor=#80ff80>30</td>
<td bgcolor=#ffa0a0>31</td>
<td bgcolor=#ffa0a0>32</td>
<td bgcolor=#ffa0a0>33</td>
<td bgcolor=#ffa0a0>34</td>
<td bgcolor=#ffa0a0>35</td>
<td bgcolor=#80ff80>36</td>
</tr><tr>
<td bgcolor=#ffa0a0>37</td>
<td bgcolor=#ffa0a0>38</td>
<td bgcolor=#ffa0a0>39</td>
<td bgcolor=#80ff80>40</td>
<td bgcolor=#ffa0a0>41</td>
<td bgcolor=#ffa0a0>42</td>
<td bgcolor=#ffa0a0>43</td>
<td bgcolor=#80ff80>44</td>
<td bgcolor=#80ff80>45</td>
<td bgcolor=#80ff80>46</td>
<td bgcolor=#ffa0a0>47</td>
<td bgcolor=#80ff80>48</td>
</tr><tr>
<td bgcolor=#ffa0a0>49</td>
<td bgcolor=#80ff80>50</td>
<td bgcolor=#ffa0a0>51</td>
<td bgcolor=#ffa0a0>52</td>
<td bgcolor=#ffa0a0>53</td>
<td bgcolor=#80ff80>54</td>
<td bgcolor=#80ff80>55</td>
<td bgcolor=#80ff80>56</td>
<td bgcolor=#ffa0a0>57</td>
<td bgcolor=#ffa0a0>58</td>
<td bgcolor=#80ff80>59</td>
<td bgcolor=#80ff80>60</td>
</tr><tr>
<td bgcolor=#ffa0a0>61</td>
<td bgcolor=#80ff80>62</td>
<td bgcolor=#80ff80>63</td>
<td bgcolor=#80ff80>64</td>
<td bgcolor=#80ff80>65</td>
<td bgcolor=#80ff80>66</td>
<td bgcolor=#80ff80>67</td>
<td bgcolor=#80ff80>68</td>
<td bgcolor=#80ff80>69</td>
<td bgcolor=#80ff80>70</td>
<td bgcolor=#80ff80>71</td>
<td bgcolor=#80ff80>72</td>
</tr><tr>
<td bgcolor=#80ff80 colspan=12>All higher periods are known</td>
</tr>
</table>

'''Most recent discoveries:''' 
May 2013: p20 gun [Matthias Merzenich with Noam Elkies] 
Mar 2013: p40 gun [Matthias Merzenich with Jason Summers, Adam P. Goucher] 
Apr 2010: p45 gun [Matthias Merzenich] 
Dec 2009: p59 gun [Adam P. Goucher with Jason Summers] 
Jul 2004: p36 gun [Jason Summers] 
Aug 2000: p22 gun [David Eppstein, Jason Summers] 
Oct 1998: p55 gun [Stephen Silver, Noam Elkies with David Buckingham] 
29 Jan 1998: p56 gun [Dietrich Leithner, Noam Elkies with David Buckingham] 
26 Jan 1998: p54 gun [Dietrich Leithner with David Buckingham, Noam Elkies] 
Jun 1997: p24 gun, and related p48 gun [Noam Elkies] 
13 Oct 1996: p50 gun [Dean Hickerson with Noam Elkies, David Buckingham] 
12 Oct 1996: Herschel track method of constructing any period 62 or
higher [David Buckingham] 


==Gun pseudo-periods==

<table border=1 cellspacing=0>

<tr><th>Glider</th><th>LWSS</th><th>MWSS</th><th>HWSS</th></tr>

<tr>
<td bgcolor=#c0c0c0 colspan=4>All lower periods are impossible.</td>
</tr><tr>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#c0c0c0>13</td>
<td bgcolor=#c0c0c0>13</td>
</tr><tr>
<td bgcolor=#80ff80>14</td>
<td bgcolor=#ffa0a0>14</td>
<td bgcolor=#c0c0c0>14</td>
<td bgcolor=#c0c0c0>14</td>
</tr><tr>
<td bgcolor=#80ff80>15</td>
<td bgcolor=#ffa0a0>15</td>
<td bgcolor=#c0c0c0>15</td>
<td bgcolor=#c0c0c0>15</td>
</tr><tr>
<td bgcolor=#80ff80>16</td>
<td bgcolor=#ffa0a0>16</td>
<td bgcolor=#ffa0a0>16</td>
<td bgcolor=#c0c0c0>16</td>
</tr><tr>
<td bgcolor=#80ff80>17</td>
<td bgcolor=#ffa0a0>17</td>
<td bgcolor=#ffa0a0>17</td>
<td bgcolor=#c0c0c0>17</td>
</tr><tr>
<td bgcolor=#80ff80>18</td>
<td bgcolor=#ffa0a0>18</td>
<td bgcolor=#ffa0a0>18</td>
<td bgcolor=#ffa0a0>18</td>
</tr><tr>
<td bgcolor=#80ff80>19</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#ffa0a0>19</td>
<td bgcolor=#ffa0a0>19</td>
</tr><tr>
<td bgcolor=#80ff80>20</td>
<td bgcolor=#ffa0a0>20</td>
<td bgcolor=#ffa0a0>20</td>
<td bgcolor=#ffa0a0>20</td>
</tr><tr>
<td bgcolor=#80ff80>21</td>
<td bgcolor=#ffa0a0>21</td>
<td bgcolor=#ffa0a0>21</td>
<td bgcolor=#ffa0a0>21</td>
</tr><tr>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#80ff80>22</td>
<td bgcolor=#80ff80>22</td>
</tr><tr>
<td bgcolor=#80ff80>23</td>
<td bgcolor=#80ff80>23</td>
<td bgcolor=#80ff80>23</td>
<td bgcolor=#80ff80>23</td>
</tr><tr>
<td colspan=4 bgcolor=#80ff80>All higher periods are known.</td>
</tr>
</table>

==Velocities of spaceships and related objects==
Velocity is the combination of speed and slope (direction).

In this section, velocity is in the form (X,Y)c/P, where X>=Y, and
no factor is common to
all of X, Y, and P. (c is the "speed of light": 1 cell/generation.)
P is therefore the minimum possible period
for that velocity; X and Y are the (average) number of cells moved
horizontally and vertically in P generations. The slope (direction)
is Y/X, and the speed is Xc/P.

For example, (2,0)c/5 indicates movement of 2 cells horizontally and
no cells vertically every 5 generations.

"Versatile puffer," means that for some period, we can build a
clean glider rake with the gliders traveling in any of
the possible directions.

Whether an object is a "wickstretcher" is to some extent a judgment call.
For this table, the wick is required to be reasonably closely connected in all
phases, and must in some sense be extended at a single location, rather than
being built up slowly from pieces.

The "Gun?" column indicates whether a gun has been built which
fires spaceships of that velocity.

<table border=1 cellspacing=0 width=500>
<tr><th>Velocity</th><th>Spaceship?</th>
<th>Puffer?</th><th>Versatile puffer?</th><th>Wick- stretcher?</th><th>Gun?</th></tr>
<tr><td>(1,0)c/2</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/3</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/4</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,1)c/4</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(1,0)c/5</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(2,0)c/5</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor="#80ff80">Yes</td></tr>
<tr><td>(1,1)c/5</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,0)c/6</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(2,1)c/6</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(1,1)c/6</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,0)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(2,0)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(3,0)c/7</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(2,1)c/7</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td></tr>
<tr><td>(1,1)c/7</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>--</td><td bgcolor=#ffa0a0>No</td><td bgcolor=#ffa0a0>No</td></tr>
<tr><td>(1,1)c/12</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#80ff80>Yes</td><td bgcolor=#ffff80>Yes</td><td bgcolor=#80ff80>Yes</td></tr>
<tr><td>(17,0)c/45</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#ffa0a0">No</td><td bgcolor="#ffa0a0">No</td></tr>
<tr><td>(23,5)c/79</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#ffa0a0">No</td><td bgcolor="#ffa0a0">No</td></tr>
<tr><td>(31,0)c/240</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#80ff80">Yes</td><td bgcolor="#ffa0a0">No</td><td bgcolor="#ffa0a0">No</td></tr>

<tr><td>Other</td><td colspan=5>
Universal constructor-based spaceships (and other objects) that move
very slowly have been made. The [[Gemini|first such object]] has a velocity of
(5120,1024)c/33699586.
</td></tr>
</table>

'''Most recent discoveries (new velocities):''' 
Dec 2015: c/7402 diagonal 0hd Demonoid [Chris Cain, Dave Greene] 
Nov 2015: c/12700 diagonal 10hd Demonoid [Dave Greene, Chris Cain] 
Dec 2014: (23,5)c/79 spaceship [Brett Berger, Ivan Fomichev with Nicolay Beluchenko] 
Sep 2014: 31c/240 orthogonal spaceship [Dave Greene, Ivan Fomichev, Adam P. Goucher, Chris Cain with Kiho Park] 
Jul 2014: Half-baked knightships [Adam P. Goucher, Chris Cain, Ivan Fomichev, Dave Greene] 
Feb 2013: c/7 orthogonal spaceship [Josh Ball] 
Aug 2011: c/7 diagonal spaceship [Matthias Merzenich] 
May 2010: Universal constructor-based [[Gemini|"Gemini" spaceship]] [Andrew Wade] 
Sep 2005: c/6 diagonal spaceship [Nicolay Beluchenko] 
Dec 2004: 17c/45 orthogonal spaceship [Gabriel Nivasch, Jason Summers with David Bell] 
Nov 2000: c/5 diagonal spaceship [Jason Summers; search software by David Bell] 
Apr 2000: c/6 orthogonal spaceship [Paul Tooke; search software by David Eppstein] 
Jan 2000: 2c/7 orthogonal spaceship [David Eppstein] 
Jan 1996: c/5 orthogonal spaceship [Tim Coe]



'''Most recent discoveries (other):''' 
Sep 2015: 2c/7 orthogonal spaceship gun [Chris Cain] (based on the 2c/7 spaceship synthesis from Jan 2015) 
Jan 2015: 2c/7 orthogonal spaceship synthesis [Martin Grant, Tanner Jacobi] 
Jan 2015: Gun for a half-baked knightship [Chris Cain] (a gun was likely constructed by [Michael Simkin] in Dec 2014, but it was too big to run in Golly) 
Dec 2014: (versatile) (23,5)c/79 puffer [Brett Berger, Ivan Fomichev with Nicolay Beluchenko] 
Dec 2014: c/3 orthogonal spaceship gun [Martin Grant, Michael Simkin with David Bell] 
Sep 2014: (versatile) 31c/240 orthogonal puffer [Dave Greene, Ivan Fomichev, Adam P. Goucher, Chris Cain, with Kiho Park] 
May 2014: versatile 2c/7 orthogonal puffer [Ivan Fomichev] 
Dec 2013: 2c/7 orthogonal puffer [Ivan Fomichev] 
Mar 2013: c/5 orthogonal wickstretcher [Matthias Merzenich] 
Feb 2013: c/7 orthogonal spaceship gun [Shannon Omick, Matthias Merzenich, Adam P. Goucher with Josh Ball] 
Jan 2011: c/5 diagonal wickstretcher [Matthias Merzenich] 
Sep 2010: (versatile) c/5 diagonal puffer [Matthias Merzenich] 
Jul 2010: Gun for Gemini spaceship [Dave Greene] 
Oct 2005: versatile c/4 diagonal puffer [David Bell with Jason Summers, Nicolay Beluchenko] 
Dec 2004: (versatile) 17c/45 orthogonal puffer [Gabriel Nivasch, Jason Summers with David Bell] 
Mar 2004: c/4 diag puffer [Hartmut Holzwart] 
Mar 2003: 2c/5 orthogonal spaceship gun [Noam Elkies, Dave Greene] 
Oct 2002: c/2 wickstretcher [Dean Hickerson, Jason Summers] 
Oct 2000: versatile c/4 puffer [David Bell, Jason Summers] 
Jun 2000: versatile 2c/5 puffer [David Bell, Jason Summers with Paul Tooke] 
Jul 1999: c/12 gun [Stephen Silver, Jason Summers] 
Mar 1999: c/12 wickstretcher [Jason Summers with Dean Hickerson, David Buckingham] 
Feb 1999: 2c/5 puffer [Jason Summers] 
Jan 1999: c/4 puffer [Jason Summers] 
Jun 1998: versatile c/12 puffers [Stephen Silver, Dean Hickerson] 
Sep 1997: versatile c/5 puffers [David Bell] 
May 1997: c/5 puffer [Tim Coe, David Bell] 
Jun 1996: versatile c/3 puffers [David Bell] 
Apr 1996: c/3 puffer [David Bell] 


==Spaceship periods==
This table lists the known spaceship periods up to 36 for each
velocity. Periods not possible at any of the known velocities
are omitted to save space.

Yellow means that only "trivial"
examples exist, with no single section that repeats at the full
period.

<table border="1" cellspacing="0">

<tr><th rowspan="2" valign="top">Velocity</th>
<th colspan="29">Period</th></tr>

<tr>
<th bgcolor="#80ff80">2</th>
<th bgcolor="#80ff80">3</th>
<th bgcolor="#80ff80">4</th>
<th bgcolor="#80ff80">5</th>
<th bgcolor="#80ff80">6</th>
<th bgcolor="#80ff80">7</th>
<th bgcolor="#80ff80">8</th>
<th bgcolor="#80ff80">9</th>
<th bgcolor="#80ff80">10</th>
<th bgcolor="#80ff80">12</th>
<th bgcolor="#80ff80">14</th>
<th bgcolor="#80ff80">15</th>
<th bgcolor="#80ff80">16</th>
<th bgcolor="#80ff80">18</th>
<th bgcolor="#80ff80">20</th>
<th bgcolor="#80ff80">21</th>
<th bgcolor="#80ff80">22</th>
<th bgcolor="#80ff80">24</th>
<th bgcolor="#80ff80">25</th>
<th bgcolor="#80ff80">26</th>
<th bgcolor="#80ff80">27</th>
<th bgcolor="#80ff80">28</th>
<th bgcolor="#80ff80">30</th>
<th bgcolor="#80ff80">32</th>
<th bgcolor="#ffa0a0">33</th>
<th bgcolor="#ffa0a0">34</th>
<th bgcolor="#80ff80">35</th>
<th bgcolor="#80ff80">36</th>
<th>other</th></tr>

<tr>
<td>c/2 orth</td>
<td bgcolor="#80ff80">2</td><td> </td>
<td bgcolor="#80ff80">4</td><td> </td>
<td bgcolor="#80ff80">6</td><td> </td>
<td bgcolor="#80ff80">8</td><td> </td>
<td bgcolor="#80ff80">10</td>
<td bgcolor="#80ff80">12</td>
<td bgcolor="#80ff80">14</td><td> </td>
<td bgcolor="#80ff80">16</td>
<td bgcolor="#80ff80">18</td>
<td bgcolor="#80ff80">20</td><td> </td>
<td bgcolor="#80ff80">22</td>
<td bgcolor="#80ff80">24</td><td> </td>
<td bgcolor="#80ff80">26</td><td> </td>
<td bgcolor="#80ff80">28</td>
<td bgcolor="#80ff80">30</td>
<td bgcolor="#80ff80">32</td><td> </td>
<td bgcolor="#ffa0a0">34</td><td> </td>
<td bgcolor="#80ff80">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/3 orth</td>
<td> </td>
<td bgcolor="#80ff80">3</td><td colspan="2"> </td>
<td bgcolor="#80ff80">6</td><td colspan="2"> </td>
<td bgcolor="#80ff80">9</td><td> </td>
<td bgcolor="#80ff80">12</td><td> </td>
<td bgcolor="#80ff80">15</td><td> </td>
<td bgcolor="#80ff80">18</td><td> </td>
<td bgcolor="#80ff80">21</td><td> </td>
<td bgcolor="#80ff80">24</td><td colspan="2"> </td>
<td bgcolor="#80ff80">27</td><td> </td>
<td bgcolor="#80ff80">30</td><td> </td>
<td bgcolor="#ffa0a0">33</td><td colspan="2"> </td>
<td bgcolor="#80ff80">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/4 orth</td>
<td colspan="2"> </td>
<td bgcolor="#80ff80">4</td><td colspan="3"> </td>
<td bgcolor="#80ff80">8</td><td colspan="2"> </td>
<td bgcolor="#80ff80">12</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">16</td><td> </td>
<td bgcolor="#80ff80">20</td><td colspan="2"> </td>
<td bgcolor="#80ff80">24</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">28</td><td> </td>
<td bgcolor="#80ff80">32</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/4 diag</td>
<td colspan="2"> </td>
<td bgcolor="#80ff80">4</td><td colspan="3"> </td>
<td bgcolor="#80ff80">8</td><td colspan="2"> </td>
<td bgcolor="#80ff80">12</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">16</td><td> </td>
<td bgcolor="#ffa0a0">20</td><td colspan="2"> </td>
<td bgcolor="#ffff80">24</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">28</td><td> </td>
<td bgcolor="#ffa0a0">32</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">~4508, ...</td>
</tr>

<tr><td>2c/5 orth</td>
<td colspan="3"> </td>
<td bgcolor="#80ff80">5</td><td colspan="4"> </td>
<td bgcolor="#80ff80">10</td><td colspan="2"> </td>
<td bgcolor="#80ff80">15</td><td colspan="2"> </td>
<td bgcolor="#80ff80">20</td><td colspan="3"> </td>
<td bgcolor="#80ff80">25</td><td colspan="3"> </td>
<td bgcolor="#80ff80">30</td><td colspan="3"> </td>
<td bgcolor="#80ff80">35</td><td> </td>
<td bgcolor="#80ff80">...</td>
</tr>

<tr><td>c/5 orth</td>
<td colspan="3"> </td>
<td bgcolor="#80ff80">5</td><td colspan="4"> </td>
<td bgcolor="#80ff80">10</td><td colspan="2"> </td>
<td bgcolor="#80ff80">15</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">20</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">25</td><td colspan="3"> </td>
<td bgcolor="#80ff80">30</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">60, ...</td>
</tr>

<tr><td>c/5 diag</td>
<td colspan="3"> </td>
<td bgcolor="#80ff80">5</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">10</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">15</td><td colspan="2"> </td>
<td bgcolor="#ffa0a0">20</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">25</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">85, ...</td>
</tr>

<tr><td>c/6 orth</td>
<td colspan="4"> </td>
<td bgcolor="#80ff80">6</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">12</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">18</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">24</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#ffa0a0">None</td>
</tr>

<tr><td>c/6 diag</td>
<td colspan="4"> </td>
<td bgcolor="#80ff80">6</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">12</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">18</td><td colspan="3"> </td>
<td bgcolor="#ffa0a0">24</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">30</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#ffa0a0">None</td>
</tr>

<tr><td>c/7 orth</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">14</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">21</td><td colspan="5"> </td>
<td bgcolor="#ffa0a0">28</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#ffa0a0">None</td>
</tr>

<tr><td>2c/7 orth</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">14</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">21</td><td colspan="5"> </td>
<td bgcolor="#ffa0a0">28</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#80ff80">~1162, ...</td>
</tr>

<tr><td>c/7 diag</td>
<td colspan="5"> </td>
<td bgcolor="#80ff80">7</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">14</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">21</td><td colspan="5"> </td>
<td bgcolor="#ffa0a0">28</td><td colspan="4"> </td>
<td bgcolor="#ffa0a0">35</td><td> </td>
<td bgcolor="#ffa0a0">None</td>
</tr>

<tr><td>c/12 diag</td>
<td colspan="9"> </td>
<td bgcolor="#ffa0a0">12</td><td colspan="7"> </td>
<td bgcolor="#ffa0a0">24</td><td colspan="9"> </td>
<td bgcolor="#ffa0a0">36</td>
<td bgcolor="#80ff80">96, 192, ...</td>
</tr>

<tr><td>17c/45 orth</td>
<td colspan="28"> </td>
<td bgcolor="#80ff80">270, ...</td>
</tr>

<tr><td>(23,5)c/79</td>
<td colspan="28"> </td>
<td bgcolor="#80ff80">158, ...</td>
</tr>

<tr><td>31c/240 orth</td>
<td colspan="28"> </td>
<td bgcolor="#80ff80">240, ...</td>
</tr>

</table>

Most recent discoveries, excluding new velocities: 
Sep 2015: nontrivial c/3 orth p30 [Matthias Merzenich, Josh Ball] 
Oct 2010: c/4 orth p24 [Matthias Merzenich] 
Sep 2005: c/4 diag p12 [Hartmut Holzwart] 
Nov 2004: c/5 orth p10 [Paul Tooke] 
Nov 2003: c/4 orth p32 [Paul Tooke with Jason Summers] 
Feb 2003: c/2 orth p18 [Paul Tooke] 
Dec 2002: nontrivial c/3 orth p18 [David Bell, Jason Summers] 
Oct 2002: c/3 orth p27 [Paul Tooke] 
May 2002: 2c/5 orth p35 [Paul Tooke] 
8 Feb 2002: 2c/5 orth p15 and p25 [Paul Tooke] 
4 Feb 2002: 2c/5 orth p20 and p30 [Paul Tooke] 
14 Jan 2002: c/3 orth p21 [Paul Tooke] 
8 Jan 2002: c/2 orth p30 [Paul Tooke] 
Dec 2001: c/2 orth p10 and p14 [Paul Tooke] 
May 2001: c/2 orth p22 [David Bell, Paul Tooke with Jason Summers] 
Apr 2001: c/2 orth p26 [David Bell, Paul Tooke] 
Dec 2000: c/4 diag p8 [Jason Summers] 
Nov 2000: c/3 orth p12 [David Bell, Jason Summers] 
Oct 2000: c/4 orth p8 and p12 [Jason Summers], and resulting trivial p24 
Sep 2000: c/4 orth p20 [David Bell with Jason Summers] 
May 2000: 2c/5 orth p10 [David Bell, Paul Tooke] 
Feb 1999: c/3 orth p6 [Stephen Silver], and resulting trivial p18 and p30 
May 1998: c/5 orth p30 [David Bell with Noam Elkies] 
Mar 1998: c/3 orth p36 [David Bell] 
Dec 1997: c/5 orth p15 [Noam Elkies with Tim Coe] 
Apr 1996: c/3 orth p24 [David Bell] 
?May 1994: c/2 orth p28 [Hartmut Holzwart with Alan Hensel] 
Dec 1993: c/3 orth p15 [David Bell] 
Jul 1993: c/2 orth p6 [David Bell] 
May 1992: c/3 orth p9 [David Bell]

Talk:Glider-producing switch engine

2015-02-26T12:24:02Z

Scorbie: Synthesis reduction to 3 gliders?

I believe that the synth of the glider-producing switch engine needs only 3 gliders, if Michael Simkin's discovery counts...
But it's kind of a judgement call to me.